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Why Is My Car Shaking? Common Causes, Based on When It Happens

A car that shakes is hard to ignore, and it's one of the things drivers search for most. The tricky part is that "shaking" can come from the tires, the brakes, the suspension or the engine. A better question than "why is my car shaking?" is "when is my car shaking?" The answer points you in the right direction.

It shakes at higher speeds

If the steering wheel or the seat vibrates mainly at higher speeds, the most common cause is the wheels. A tire that's out of balance, a bent rim, a tire with a bulge, or uneven wear can all do it. A tire shop can balance the wheels and check them. Also check the tire pressure, and look at each tire for bulges or cuts.

It shakes when you brake

A shaking steering wheel or a pulsing pedal when braking often points to uneven brake discs, worn pads, or a sticking brake caliper. Don't leave this one. Brakes are a safety system, so have them inspected. If you also notice a burning smell after driving, that can be a sign of a caliper that's sticking.

It shakes at idle or when accelerating

A rough, shaking engine can be a misfire. Common causes are worn spark plugs, a weak ignition coil, a fuel or air problem, or worn engine mounts that no longer hold the engine firmly. If the check engine light comes on, especially if it's flashing, slow down and get it checked quickly, because a misfire can damage other parts.

It shakes over bumps or pulls to one side

Worn suspension or steering parts, such as joints, bushings or shock absorbers, can cause shaking, clunks and a car that doesn't feel steady. A bad wheel alignment can make the car pull to one side and wear the tires unevenly.

What to do next

Note exactly when it happens: speed, braking, idling, turning.
Check the tire pressure and look at the tires.
Check for warning lights on the dashboard.
Get a proper diagnosis from a garage. Describe what you noticed.

Stop driving and get help if the shaking comes with overheating, a flashing check engine light, a very strong burning smell, or a steering wheel that feels loose. Shaking is the car telling you something. It's better to listen early.

General information only. Check your owner's manual, and ask a qualified mechanic if you're not sure.

How to Read a Tire Sidewall: What 205/55 R16 Means

The numbers on the side of a tire look like a secret code, but they tell you the size, the load it can carry, the speed it's made for, and even how old it is. Once you can read them, buying the right tire is much easier.

Reading the size

Take a tire marked 205/55 R16 91V:

205 is the width of the tire in millimetres.
55 is the height of the side wall as a percentage of the width.
R means radial construction, which is standard on most cars.
16 is the wheel (rim) diameter in inches.
91 is the load index, a code for how much weight the tire can carry. You can look it up in a chart.
V is the speed rating, the top speed the tire is designed for.

How old is your tire?

Look for the letters DOT, followed by a code. The last four digits show when the tire was made: the first two are the week and the last two are the year. For example, 2423 means week 24 of 2023. Rubber ages even when a tire isn't used much, so an old tire with plenty of tread can still be unsafe. Many tire makers suggest having older tires inspected regularly and replacing them after about ten years, whatever the tread looks like. Check your manual and ask your tire shop.

Other marks you may see

M+S or a mountain with a snowflake means the tire is made for winter conditions. XL or "reinforced" means a higher load rating. Electric cars sometimes need tires with special markings, so follow the manual.

Buying the right tire

Use the size shown on the sticker in the door frame or in your owner's manual, not just whatever is on the car now, because a previous owner may have changed it. Keep the same size, load index and speed rating unless your manual allows something else. And don't mix very different tires on the same axle.

Also, the pressure to use is on the door sticker or in the manual. The number on the sidewall is only the maximum.

General information only. Check your owner's manual, and ask a qualified mechanic if you're not sure.

Regenerative Braking Explained: How Electric and Hybrid Cars Recover Energy

Hybrid and electric cars have a clever trick: they turn braking into charging. Instead of wasting the energy of a moving car as heat, they send some of it back to the battery. It's called regenerative braking, and it changes how these cars feel to drive.

In a hybrid or an electric car, slowing down also charges the battery.

How it works

When you lift your foot off the accelerator, or press the brake pedal gently, the electric motor works in reverse, as a generator. That slows the car down and sends energy to the battery. The normal friction brakes (pads and discs) are still there, and they take over for harder stops and for the last bit of slowing down.

Why it matters

It helps the car use less energy, especially in city traffic with lots of stopping and starting. It also means the brake pads and discs are used less, so they often last longer than in a normal car.

One-pedal driving

Some electric cars slow down quite strongly as soon as you lift off the accelerator, so you can drive most of the time without touching the brake pedal. Many cars let you change how strong this is in the settings. It takes a day or two to get used to it. And in most cars, the brake lights come on when the car slows down this way, so the drivers behind you can see it.

When it's weaker

Regenerative braking doesn't always work the same. It can be weaker when the battery is almost full, because the energy has nowhere to go, when the battery is very cold, and at very low speeds. You may notice the car slows down less than usual, and the normal brakes do more of the work. So always leave a safe distance, and don't count on the same slowing down every time.

On a slippery road, a strong setting can feel abrupt. If your car lets you, choose a lower setting in the rain or on ice, and drive smoothly.

Looking after the brakes

Because the friction brakes are used less, they can rust or stick. Have them checked regularly, as your manual says, and don't skip brake fluid changes. If you notice a noise, a vibration or a longer stopping distance, get it looked at.

General information only. Electric and hybrid cars vary a lot, so follow your owner's manual and leave high-voltage work to a qualified technician.

Windshield Wipers: When to Replace Them and How to Make Them Last

Windshield wipers are easy to forget, until the first heavy rain of the season, when you suddenly can't see. Poor visibility is a real safety risk, and replacing wipers costs very little. Here's how to know when it's time.

Signs your wipers need replacing

Streaks or smears across the glass. A hazy film after each wipe. Skipping or chattering across the windscreen. Squeaking. Rubber that looks cracked, split or hard, or a bent frame that doesn't touch the glass evenly. If you notice any of these, don't wait for a storm.

How to make them last longer

Clean the blades and the glass from time to time with washer fluid or soapy water and a soft cloth. Dirt on the blade is a common cause of streaks.
Keep the washer fluid topped up, and use it instead of wiping dry glass. Wipers dragging over dry glass wear out fast.
In hot weather, park in the shade when you can. Heat hardens the rubber.
Clear ice and frost with a scraper before you switch the wipers on, and make sure they're not frozen to the glass.
Check them before the rainy season starts. Many drivers replace them about once a year, depending on the climate.

How to replace them

Check the right size in your manual or on the packaging. The driver's side, the passenger's side and the rear wiper can all be different.
Lift the wiper arm away from the glass until it stays up.
Find the small clip or tab where the blade joins the arm, press it, and slide the old blade off.
Slide the new blade on until it clicks into place.
Lower the arm gently. Don't let it snap back onto the glass, because it can crack the windscreen.

One more thing

Use proper washer fluid, not plain water, especially in cold weather, when plain water can freeze. And if a blade is torn or the arm is bent, change it right away. The few minutes it takes can make a big difference when it's raining hard.

General information only. Check your owner's manual, and ask a qualified mechanic if you're not sure.

Engine Coolant Explained: What It Does and How to Check It

Most drivers know that the engine needs coolant, but few know what it really does. It's not just there to stop the engine boiling over in summer. It also protects it from freezing, from rust and from damage inside the cooling system. Checking it takes two minutes.

What coolant does

Coolant (also called antifreeze) carries heat away from the engine to the radiator. It also stops the liquid freezing in cold weather, protects metal parts from corrosion, and helps keep the water pump working smoothly. Old coolant slowly loses these protections, which is why it needs changing.

How to check the level

Park on level ground and let the engine cool down completely.
Find the coolant reservoir under the bonnet. It's a see-through container with MIN and MAX marks. Your manual shows where it is.
Check that the level is between MIN and MAX.
If it's low, top up with the type of coolant your manual specifies, and keep an eye on it. A level that keeps dropping points to a leak.

The one rule that matters: never open the radiator cap or the coolant cap while the engine is hot. The system is under pressure, and hot liquid can cause serious burns.

Don't mix types

Coolant comes in different colours, such as green, orange, pink or blue, but the colour alone doesn't tell you which type your car needs. Different types can react badly when mixed, and the result can clog the system. Use what the manual says. Many coolants are sold ready mixed, and concentrates need to be mixed with distilled water as the label says.

Signs of trouble

A temperature gauge that climbs, a sweet smell, a puddle under the car, white smoke from the exhaust, a heater that doesn't get warm, or a low coolant warning. If you notice any of these, don't ignore them. Coolant is toxic to people and pets, so clean up any spill and keep containers closed. Take old coolant to a garage or a recycling point.

Hybrid and electric cars

Many have separate cooling circuits for the battery and the electronics, sometimes with their own coolant. Don't top those up yourself unless your manual says you can. Leave that to a technician.

General information only. Check your owner's manual, and ask a qualified mechanic if you're not sure.

How to Make Your Car Battery Last Longer

A car battery rarely dies without warning. It usually fades over time, and the car gets harder to start until one morning it won't. How long a battery lasts depends on the climate and on how you use the car, and heat is usually harder on it than cold. Here's how to get more out of yours.

Signs the battery is getting weak

The engine cranks slowly, the headlights look dim when you start, a battery warning light comes on, or you hear a fast clicking when you turn the key. Other signs are strange electrical behaviour, white or green crust on the terminals, or a battery case that looks swollen. If you see a swollen or leaking battery, don't touch it, and get it checked.

Habits that help

Don't rely only on very short trips. Starting the engine uses a lot of energy, and a short drive doesn't give the alternator time to put it back. Take a longer drive now and then.
Switch off the lights, the radio and any chargers before you turn off the engine, and don't sit with the engine off and the electronics on.
Keep the terminals clean and tight. If there's crust on them, switch the engine off, wear gloves and eye protection, and clean it off with a brush and a mix of baking soda and water. Disconnect the negative (-) clamp first, and reconnect it last. If you're not comfortable doing it, ask a garage.
Park in the shade when you can. Heat shortens battery life, and a battery that isn't held firmly in place can be damaged by vibration.
If the car will sit for weeks, use a battery maintainer (a smart trickle charger), or start it and drive it for a while from time to time.
Have the battery tested once a year, especially when it's a few years old. Many garages do a quick test for little or nothing.

Hybrid and electric cars

They still have a normal 12-volt battery, and when it fails the car can refuse to start or "wake up", even if the big battery is fine. The warning signs are similar. Leave anything that involves the high-voltage system to a qualified technician.

When it's time to replace it

Use the type and size your manual calls for. Some cars with a start-stop system need a specific kind of battery (such as AGM or EFB). And take the old one to a shop or a recycling point. Never throw a car battery in the bin.

General information only. Check your owner's manual, and ask a qualified mechanic if you're not sure.

How to Charge an Electric Car at Home: The Basics

Most electric car owners charge at home, usually overnight. It's convenient, and often cheaper than public charging. If you're new to electric cars, here are the basics.

Home charging is convenient, as long as the setup is safe.

Three ways to charge

A standard household socket is the slowest option. It can be fine for a car that drives short distances every day, but it can take a very long time to fill a battery.

A home wall charger (a wallbox) is faster and made for the job. It's the most popular choice for home charging, and it needs to be installed by a qualified electrician.

A public fast charger is much faster, and meant for trips or emergencies, not for every day.

What you need at home

The charging cable that matches your car and your charger. Use the one supplied by the maker, or a quality cable approved for your car.
A safe electrical supply. Ask an electrician to check that your wiring and your main panel can handle hours of charging at a steady load.
A dedicated circuit, if the electrician recommends one, with the right protection devices.
A good spot, close to the car's charging port and protected from direct rain and knocks.

How to charge

Park so the cable reaches the charging port without being stretched.
Open the charging port and push the connector in until it clicks.
Check that the car or the app shows that charging has started.
When you're done, stop the charge from the car or the app, then unplug.
Store the cable off the ground so nobody drives over it.

Smart habits

Set a charge limit and a schedule in the car or the app. Many people charge at night, when electricity can be cheaper in some places. And for daily use, a slower charge is gentler on the battery than fast charging.

Safety first: don't use extension cords, multi-plug adapters or damaged cables for charging, because they can overheat. Keep connectors clean and dry, and never touch a cable that's cracked or burnt. Let a qualified electrician install any wall charger.

Before you buy a car, check whether your parking space has a safe power supply nearby. It can change which car and which charger you choose.

General information only. Electric and hybrid cars vary a lot, so follow your owner's manual and leave high-voltage work to a qualified technician.

Buying a Used Car: 10 Checks Before You Pay

A used car can be a great deal, or an expensive problem hiding under a nice paint job. A calm, step-by-step check helps you see what the seller doesn't mention. Bring a friend, go in daylight, and don't let anyone rush you into deciding on the spot.

The ten checks

The papers. Check that the owner's name matches the documents, that the chassis number on the car matches the papers, and that nothing is owed on the car. The rules differ by country, so get local advice.
The service history. Regular service records are a good sign. Be careful if the seller has none.
The mileage. Compare the odometer with the service records and with the wear on the seats, pedals and steering wheel. A very low mileage with a very worn interior is suspicious.
The body. Walk around the car in daylight. Look for panels in slightly different colours, uneven gaps and rust, especially at the edges and under the doors.
The tires. Uneven wear can point to alignment or suspension problems.
Under the bonnet. Look for oil or coolant leaks, and for a milky substance under the oil cap. Check the fluid levels.
A cold start. Ask to start the engine cold. Listen for knocking and look for heavy smoke from the exhaust.
The inside. Test the windows, lights, locks, wipers, air conditioning and every dashboard light. A musty smell or damp carpets can mean water damage.
The test drive. Drive on different roads. Check that the car goes straight, the brakes feel firm, the gears change smoothly, and there are no strange noises or vibrations.
A professional inspection. Pay a trusted, independent mechanic to look at the car before you pay. It costs little compared with a hidden problem.

Hybrid and electric cars

Ask for a battery health report. The battery is the most expensive part, and its condition matters more than the paint.

Red flags

The seller refuses an inspection or a test drive. The price is far below similar cars. The papers are incomplete, or the seller is in a big hurry for cash.

Don't pay or sign anything before you've checked the papers and the car. If something feels wrong, walk away. There will always be another car.

General information only. Check your owner's manual, and ask a qualified mechanic if you're not sure.

Driving in Heavy Rain: 8 Tips to Stay Safe

Heavy rain changes everything. The road is slippery, you can't see as far, and the car takes longer to stop. A few simple habits make driving in the rain much safer.

Slow down and leave more space when the road is wet.

Eight tips

Slow down. Lower speed gives you more time to react, and it cuts the risk of losing grip.
Leave more space. Stopping takes longer on a wet road, so keep a much bigger gap than usual.
Turn on your headlights. You need to see, and other drivers need to see you.
Be smooth. Brake, steer and accelerate gently. Sudden moves can start a skid.
Keep the glass clear. Use the demister and the air conditioning to stop the windows fogging, and make sure the wipers don't smear. Replace worn blades.
Take extra care at the start of the rain. The first rain can bring oil up to the surface and make the road very slippery.
Stay out of deep water. If you can't see how deep the water on the road is, don't drive through it. Water can stall or damage the engine, and it can float a car. Turn around.
Check your tires. Good tread and the right pressure help the tires push water away. Old, worn tires are dangerous in the rain.

What if the car aquaplanes?

Aquaplaning means the tires are riding on a layer of water and have lost contact with the road. The steering may suddenly feel light. Stay calm. Take your foot off the accelerator, hold the steering wheel straight, and don't brake hard or turn sharply. When you feel the grip come back, you can brake or steer gently again.

After driving through water

Test your brakes gently while driving slowly. Wet brakes can work less well for a moment. If they feel weak, press the pedal lightly a few times until they dry.

If the rain is so heavy that you can't see the road, find a safe place to stop, away from traffic and from the edge of the road, and wait.

The best time to check your wipers, lights and tires is before the rainy season starts, not during the first storm.

General information only. Check your owner's manual, and ask a qualified mechanic if you're not sure.

Brake Fluid: Why It Matters and When to Check It

Everybody knows brake pads wear out. Far fewer people think about brake fluid. But this fluid is what carries the force from your foot to the brakes, so it's a key part of the safety system.

What brake fluid does

When you press the pedal, the fluid moves through the brake lines and pushes the pads against the discs (or the shoes against the drums). The fluid can't be squeezed, so the force reaches all four wheels.

Why it needs changing

Brake fluid slowly absorbs moisture from the air. Over time that lowers the temperature at which it boils, and it can cause rust inside the system. In hard braking, for example on a long downhill, boiling fluid makes bubbles, and the pedal can feel soft or sink. That's why makers give a time interval for changing it, not just a distance. Check the interval in your manual.

How to check the level

Park on level ground and switch off the engine.
Find the brake fluid reservoir under the bonnet. It's a small, usually see-through container with MIN and MAX marks. Your manual shows where it is.
Wipe the outside clean and read the level from the side, without opening the cap if you can.
The level should be between MIN and MAX. Fresh fluid is usually clear or light amber, and old fluid looks darker.

What a low level can mean

The level drops slowly as the brake pads wear, which can be normal. A sudden or fast drop can mean a leak. In that case, don't drive the car, and have it checked right away.

Good to know

Use only the type of fluid your car needs. It's written on the reservoir cap and in the manual (for example DOT 4). Don't mix types unless the manual allows it. Brake fluid can damage paint, so wipe up any spill immediately. And leave the actual changing to a garage, because the system has to be bled correctly and air in the lines is dangerous.

Warning signs to take seriously: a soft or spongy pedal, a pedal that slowly sinks, a brake warning light, or a puddle under the car. If you see any of them, stop driving and get professional help. It's also worth asking for a brake fluid check at every service. It takes a minute.

General information only. Check your owner's manual, and ask a qualified mechanic if you're not sure.

How to Wash Your Car Without Damaging the Paint

Washing your car should protect it, but the wrong method can leave fine scratches and dull the paint. Dust and sand on the surface act like sandpaper when you rub them around. Here's a safer way to do it.

A man washing a car with a sponge — A gentle wash protects the paint instead of scratching it.
Photo by Nik on Unsplash

What you need

Two buckets (one for soapy water, one for clean rinse water), car shampoo (not dish soap, which can strip the protective wax), a soft wash mitt or sponge, soft microfibre towels for drying, a hose, and separate brushes or mitts for the wheels.

Step by step

Choose the right place and time. Wash in the shade, when the paint is cool. Sun and heat make the soap dry on the paint and leave marks.
Rinse first. Spray the whole car to remove loose dust, sand and mud. Don't skip this step.
Do the wheels first, with their own brush and mitt. They're the dirtiest part, and you don't want that dirt on the paint.
Wash the body from top to bottom. Use the soapy bucket, and rinse the mitt in the clean bucket before you dip it back in the soap. Work in small sections, with light pressure and straight lines.
Rinse thoroughly, and don't let the soap dry.
Dry gently with clean microfibre towels. Laying the towel on the surface and pulling it softly works well, and it avoids water spots.

Protect the paint

After washing, a layer of wax or paint sealant helps protect the paint from sun, rain and dirt. Follow the instructions on the product, and repeat from time to time.

Mistakes to avoid

Wiping a dusty car with a dry cloth. Using the same dirty sponge on the whole car and on the wheels. Washing in direct sun, or on a hot body. Using strong household cleaners. And pointing a high-pressure jet at the engine bay or at electrical parts.

With an electric or hybrid car, make sure the charging port is closed and locked and the car is switched off before you wash it, and don't spray strong water straight at the charging port or the underside.

Wash often enough that bird droppings and insects don't sit on the paint for long. They can mark the finish.

General information only. Check your owner's manual, and ask a qualified mechanic if you're not sure.

Dashboard Warning Lights: 8 Symbols Every Driver Should Know

Your dashboard talks to you with small lights. Some are only information, some say "check me soon", and some say "stop now". Knowing the difference can protect you and your car.

Black and red analog speedometer on a car dashboard — Red means stop, amber means check soon.
Photo by Erik Mclean on Unsplash

The colour code

Red: a serious problem or a safety risk. Stop in a safe place as soon as you can.
Amber or yellow: something needs attention soon. Get it checked.
Green or blue: a system is on, like your headlights.

8 symbols to know

Oil pressure (red): the oil pressure is too low. Stop the engine as soon as it is safe and do not keep driving. Check the oil level.
Battery or charging (red): the charging system has a fault. The car may stop soon, so drive to a safe place or a garage.
Coolant temperature (red): the engine is overheating. Pull over and switch off the engine.
Brake system (red): first check that the handbrake is released. If the light stays on, there may be a brake fluid or brake system problem, so do not continue driving.
Check engine (amber): the engine or emission system has a fault. If it flashes, reduce speed and get help quickly.
Tire pressure (amber): one or more tires are low. Check the pressure as soon as it is safe.
ABS (amber): the anti-lock system has a fault. Normal braking still works, but without the extra help in an emergency.
Airbag (red): the airbag system has a fault, and the airbags may not work in a crash. Get it checked.

Hybrid and electric cars

They have extra lights for the high-voltage battery, the charging system and the "ready" state. A red warning about the high-voltage system should always be taken seriously. Check your manual and stop safely.

Good to know

Symbols look a little different between brands, and some cars show a message on the screen too. Your manual has a full page of dashboard symbols.

Golden tip: Take a photo of the warning-light page in your manual and keep it on your phone. You will have it when you need it.

Which warning light surprised you the most? Tell us in the comments.

This article is for general information only. Cars differ, so always follow your owner's manual and ask a qualified mechanic if you are unsure.

Car Air Conditioning Not Cold? 5 Things to Check

When the summer heat arrives and your car's air conditioning blows warm air, it is not only uncomfortable. It can be a sign of a small problem that is easy to fix, or of a bigger one that needs a professional. Check these five things first.

Air vent on a car dashboard — A weak A/C often has a simple cause you can check yourself.
Photo by Philipp Katzenberger on Unsplash

5 things to check

The settings. Make sure the A/C button is on, the temperature is set to cold, and the recirculation mode is on. Recirculation cools the cabin faster than pulling in hot outside air.
The airflow. If the air is weak, the cabin air filter may be dirty. A blocked filter reduces airflow and can cause a musty smell. Many cars let you replace it yourself in a few minutes.
The front of the car. The condenser sits behind the grille, in front of the radiator. If it is covered with dirt, leaves or insects, it cannot release heat well. Clean it gently, without bending the fins.
The compressor. With the engine running and the A/C on, listen for a click when the compressor starts. If you never hear it, there may be an electrical problem or a low refrigerant level.
Leaks and refrigerant. A weak A/C is often caused by a refrigerant leak. Topping it up does not fix the leak, and the gas will escape again.

When to see a professional

If the simple checks do not help, go to a garage. Refrigerant handling needs special equipment, and too much or too little gas can damage the compressor. Strange noises, a hot smell or a cooling fan that does not turn are also reasons to stop and get it checked.

Prevent problems

Run the A/C for a few minutes regularly, even in winter, to keep the seals lubricated.
Replace the cabin filter as your manual says.
Turn the A/C off a minute before you park and let the fan run, to reduce moisture and bad smells.

Safety note

In hybrid and electric cars, the compressor is often powered by the high-voltage system. Leave any work on it to a qualified technician.

Golden tip: Park in the shade, or use a sunshade. It reduces the heat the A/C has to remove.

What is your best trick for a hot car in summer? Tell us in the comments.

This article is for general information only. Cars differ, so always follow your owner's manual and ask a qualified mechanic if you are unsure.

Tire Pressure: How to Check It and Why It Matters

Tire pressure is one of the simplest things to check and one of the most often forgotten. The correct pressure helps your car grip the road, use less fuel and wear its tires evenly. Wrong pressure does the opposite, and it can be dangerous.

A car wheel with a black tire and silver rim — Check the pressure of all four tires, and the spare.
Photo by Obi on Unsplash

Find the right pressure for your car

Do not use the number printed on the tire's side wall. That is the maximum the tire can take, not the pressure your car needs. Look for the sticker on the door frame, inside the fuel flap or in your owner's manual. It may show different values for a normal load and for a full load.

How to check it, step by step

Check when the tires are cold. That means before you drive, or after a very short trip. Warm tires give a higher reading.
Remove the valve cap and keep it in a safe place.
Press the gauge firmly onto the valve and read the pressure.
Add air or release some until you reach the correct value.
Put the cap back and repeat for all four tires.
Do not forget the spare wheel.

Check the tread and the condition

Look for wear indicators in the grooves. When the tread is level with them, the tire is worn out.
Look for cracks, bulges, cuts or objects stuck in the rubber.
Uneven wear (more on one edge) often points to a problem with alignment, suspension or pressure.

The legal minimum tread depth is different in each country, so check your local rules.

Good to know

Pressure drops when the weather gets cold, so check more often in winter.
If a tire pressure warning light comes on, do not ignore it. Check all four tires as soon as it is safe.
Check once a month and before every long trip.

Safety note

Never over-inflate a tire above the maximum shown on its side wall. If a tire has a bulge or a deep cut, replace it and do not drive on it.

Golden tip: Keep a small, good-quality pressure gauge in the glove box. Gauges at service stations are sometimes inaccurate.

How often do you check your tires? Tell us in the comments.

This article is for general information only. Cars differ, so always follow your owner's manual and ask a qualified mechanic if you are unsure.

Hybrid Cars Explained: How They Work and What to Maintain

Hybrid cars are everywhere now, but many drivers still do not know how they work or how to look after them. In short, a hybrid has both a petrol (or diesel) engine and an electric motor with a battery. They work together to save fuel.

A dark SUV driving on a road through a forest — Hybrids combine a petrol engine with an electric motor.
Photo by Michail Dementiev on Unsplash

The three main types

Mild hybrid: a small electric system that helps the engine, for example when you accelerate. The car cannot drive on electricity alone.
Full hybrid: the car can move on the electric motor alone for short distances and at low speed. You never plug it in. The battery recharges while you drive and brake.
Plug-in hybrid (PHEV): it has a bigger battery that you charge from a socket. It can drive a good distance on electricity, then the petrol engine takes over.

How the savings happen

When you brake or lift your foot, the electric motor works as a generator and sends energy back to the battery. This is called regenerative braking. The engine also switches off when the car is stopped or moving slowly, so you burn no fuel in traffic.

What still needs regular care

The petrol engine. It still needs oil changes, filters, spark plugs and coolant, as your manual says. Hybrid engines often stop and start many times, so do not skip the service.
The brakes. Regenerative braking means the brake pads may last longer, but they can rust or stick if they are used less. Have them checked regularly.
The 12-volt battery. Even a hybrid has a normal small battery, and it can fail like in any other car.
Tires. Check pressure and wear as usual.
The cooling system for the engine and for the electrical parts.

If you choose a plug-in hybrid

Charge it regularly. If you never plug it in, you carry a heavy battery around and you may use more fuel than in a normal car.

Safety note

The orange cables in a hybrid carry high voltage. Never touch or cut them. Leave any work on the high-voltage system to a trained technician, and follow your manual if you need to jump-start the car, because some models have special procedures.

Golden tip: Before buying a used hybrid, ask for the service history and for a battery health check.

Would you choose a hybrid for your next car? Tell us why in the comments.

This article is for general information only. Electric and hybrid cars differ a lot between makes and models, so always follow your owner's manual and let a qualified technician handle anything that involves the high-voltage system.

7 Habits That Help Your Electric Car Battery Last Longer

The battery is the most expensive and most important part of an electric car. The good news is that modern batteries are built to last many years, and your daily habits can make a real difference. Here are seven simple ones.

Electric vehicle charging cable plugged into a car — Slow, gentle charging at home is kind to the battery.
Photo by CHUTTERSNAP on Unsplash

The 7 habits

Avoid living at 0% or 100%. For daily driving, try to keep the charge in the middle range. Many manufacturers suggest setting a charge limit for everyday use, and charging to full only before a long trip. Check what your manual recommends.
Do not leave the car parked almost empty. If the car will sit for days or weeks, leave it with a moderate charge, not near zero.
Use fast charging only when you need it. Fast chargers are great on a road trip, but they produce more heat. For daily use, slower charging at home or at work is gentler on the battery.
Protect the battery from extreme heat and cold. Park in the shade or in a garage when you can. In very hot or very cold weather, plugging the car in lets it manage the battery temperature, if your car supports it.
Drive smoothly. Hard acceleration and constant full-speed driving use more energy and create more heat. Smooth driving also gives you more range.
Use the car's own settings. Many cars let you set a charge limit and a charging schedule in the app or on the screen. Use them, so you do not have to remember.
Keep the car up to date. Install software updates and follow the service schedule in your manual. This includes checks of the battery cooling system if your car has one.

What to avoid

Using cheap or unknown chargers and cables that do not match your car
Charging in a place with water or damaged wiring
Ignoring a battery or charging warning on the dashboard

Safety note

An electric car has a high-voltage system. Never open, repair or modify the battery or the orange cables yourself. After a serious accident, flood or any damage to the underside of the car, ask a qualified electric-car technician to inspect it before you drive or charge again.

Golden tip: Read the battery warranty terms. They usually cover a long period, but the conditions are different from brand to brand.

Do you drive an electric car, or are you thinking about one? Tell us in the comments.

How to Check Your Car Before a Long Trip

A long trip puts more stress on your car than daily driving. A short check a few days before you leave helps you find small problems while they are still easy and cheap to fix.

A car with a suitcase in the trunk — Pack smart and check the car a few days before you leave.
Photo by Swansway Motor Group on Unsplash

The checklist

Tires. Check the pressure of all four tires and the spare. Use the pressure for a loaded car if your manual gives one. Look for cracks, bulges, nails and low tread.
Engine oil. Check the level with the dipstick, with the engine off and the car on level ground.
Coolant. Check the level in the reservoir, only when the engine is cold.
Brakes. Check the brake fluid level. Pay attention to the pedal feel, to any noise and to the stopping distance.
Windscreen washer fluid and wipers. Fill the fluid and check that the wiper blades clean well.
Lights. Check headlights, brake lights, indicators and hazard lights. A helper or a reflection in a wall makes it easy.
Battery. Look at the terminals. If the car has been starting slowly, have the battery tested before you go.
Belts and hoses. Look for cracks, leaks or loose parts.

What to carry

Driving licence, vehicle papers and insurance documents
Warning triangle and reflective vest (the rules differ by country, so check the local requirements)
Jack, wheel wrench and the spare wheel
Jumper cables, a flashlight and a first aid kit
Water, a phone charger and emergency contact numbers

One honest note

A self-check is useful, but it does not replace a professional service. If a service is due, or if you have any warning light or strange noise, visit a garage before you leave.

Golden tip: Plan rest stops and do not drive tired. A well-checked car cannot protect you from a tired driver.

What is the first thing you check before a long drive? Tell us in the comments.

This article is for general information only. Cars differ, so always follow your owner's manual and ask a qualified mechanic if you are unsure.

7 Easy Ways to Save Fuel

You cannot control the fuel price, but you can control how much fuel your car uses. These seven habits cost nothing, or very little, and they work for most cars.

A man filling his car with fuel at a station — Small habits at the pump and on the road add up.
Photo by engin akyurt on Unsplash

Drive smoothly. Hard acceleration and sudden braking waste fuel. Press the pedals gently.
Look ahead. If you see a red light or slow traffic, lift your foot early and let the car slow down, instead of braking at the last second.
Keep a steady speed. Fuel use rises quickly at high speed because of air resistance.
Check your tire pressure. Low pressure increases fuel use and wears the tires. Use the pressure shown on the sticker in the door frame or in your manual. Check it when the tires are cold.
Remove extra weight. Take out heavy things you do not need. Remove roof racks and roof boxes when you are not using them, because they create extra drag.
Use the air conditioning wisely. It uses extra energy. Use it when you need it, not by habit.
Keep the car in good condition. A dirty air filter, worn spark plugs, the wrong oil or a faulty sensor can all increase fuel use. If your check engine light is on, get it checked.

Bonus habits

Avoid long idling. If you are going to wait for a while, switch the engine off when it is safe to do so.
Combine short trips into one. A cold engine uses more fuel.
Plan your route to avoid heavy traffic and unnecessary distance.

Results depend on your car and your roads, so do not expect miracles. Be careful with "fuel saving" gadgets sold online. Most of them do not do what they promise.

Golden tip: Track your fuel use for a month. When you see the numbers, it is easier to keep the good habits.

What is your best fuel-saving tip? Share it in the comments.

This article is for general information only. Cars differ, so always follow your owner's manual and ask a qualified mechanic if you are unsure.

Which Engine Oil Is Right for Your Car?

Walk into a shop and you will see dozens of oil bottles with numbers like 5W-30 or 10W-40. Choosing the wrong one can make an engine work harder and wear faster. Choosing the right one is easier than it looks.

Bottles of motor oil on the ground — Always match the oil to what your owner's manual asks for.
Photo by Rinald Rolle on Unsplash

How to read the numbers

Take 5W-30 as an example. The first number, with the W (for winter), shows how easily the oil flows when the engine is cold. A lower number means the oil flows more easily in the cold. The second number shows how thick the oil stays when the engine is hot.

Two things must match your car

The viscosity grade (for example 5W-30), as the manufacturer recommends.
The approval or specification your engine needs. These appear on the bottle as standards such as API or ACEA, or as a manufacturer approval. This matters as much as the grade.

Types of oil

Mineral: the most basic type, made from crude oil.
Semi-synthetic: a mix of mineral and synthetic.
Fully synthetic: made to be more stable at extreme temperatures. Many modern engines require it.

Where to find the right oil

Your owner's manual is the best source. Some filler caps also show the grade. Online oil finder tools from oil brands can help, but check the result against your manual.

Common mistakes

Choosing the cheapest oil without checking the specification
Using a thicker oil "to protect an old engine" without advice from a mechanic
Ignoring special needs, for example some diesel cars with a particulate filter need a specific low-ash oil

In an emergency, topping up with a different oil is better than driving with too little oil. Then change to the correct oil as soon as you can.

Golden tip: Keep your receipts and write down the oil you used. It helps at the next service.

Which oil does your car use? Tell us in the comments.

This article is for general information only. Cars differ, so always follow your owner's manual and ask a qualified mechanic if you are unsure.

How Often Should You Change Your Oil? It Depends

Many drivers still repeat the old rule: change the oil every 5,000 kilometres. Modern engines and oils are different, and cars are different from each other. The right answer for your car is not the same as for your neighbour's car.

Man refilling motor oil in a car engine bay — Fresh oil keeps the moving parts of the engine protected.
Photo by Tim Mossholder on Unsplash

What decides your oil change interval

The manufacturer's schedule. It is usually given in distance and in time, whichever comes first. Even a car that is rarely driven needs fresh oil.
The type of oil. Mineral, semi-synthetic and fully synthetic oils last differently, and some engines require a specific type.
Your driving conditions. Short trips, stop-and-go traffic, dusty roads, very hot weather and towing are harder on oil. Many manuals call this "severe use" and give a shorter interval.
The age and condition of the engine. An older engine that burns or leaks oil needs closer attention.
The oil life monitor, if your car has one.

Where to find the right interval

Look in your owner's manual or service booklet. If you are not sure which schedule applies to you, ask a trusted garage.

How to check your oil level

Park on level ground and switch off the engine. Wait a few minutes.
Pull out the dipstick and wipe it clean.
Push it back in fully, pull it out again and read the level.
The oil should be between the minimum and maximum marks. Do not overfill.

Signs your oil needs attention

A low level, gritty or very dirty oil, an oil pressure warning light, a louder engine or a burning smell. Dark colour alone does not always mean bad oil, because oil darkens as it cleans the engine.

Golden tip: Do not stretch the interval to save a little money. Oil changes are cheap compared to engine repairs.

How often do you change your oil? Tell us in the comments.

This article is for general information only. Cars differ, so always follow your owner's manual and ask a qualified mechanic if you are unsure.