Heavy snow on a UK motorway.
Heavy snow on a UK motorway.

The 10 biggest winter driving myths revealed

Barney Cotton

Barney Cotton

Consumer Editor

12 minute read|26th Feb 2026

Can you drive in wellies? Will winter tyres hike your insurance premium? Can you get a fine from a badly de-iced windscreen? 

Let’s take a look at winter driving’s biggest myths and set the record straight in this road safety guide.

Roadside cover from £5.29 a month*
Roadside cover from £5.29 a month*

Roadside cover from £5.29 a month*

• FREE MOT on selected cover – worth up to £55
• We get to most breakdowns in 60 mins or less
• Our patrols fix 4/5 breakdowns

Buy now

*At least 10% of new customers pay this for single-vehicle Roadside (Basic). T&Cs apply.

*At least 10% of new customers pay this for single-vehicle Roadside (Basic). T&Cs apply.

1. It’s illegal to drive in winter boots or wellies

FALSE

Rule 97 of the Highway Code says motorists should ensure “clothing and footwear do not prevent you using the controls in the correct manner”.

It’s down to motorists to make sure their footwork is up to the task of controlling a vehicle. 

You should be able to show that you have full control of your car in the event that you’re stopped by police to check your footwear - which will be pretty tough if you have half a muddy field caked on your wellies.

2. Your car insurance is invalid if you fit winter tyres

winter-driving-myths-tyres

TRUE AND FALSE

Winter tyres have a deeper tread depth than standard tyres and are made from a softer compound that doesn’t harden so much in cold weather. They’re designed to disperse water and snow, allowing the rubber to move around – improving contact with the road.

Although safer than standard tyres, some insurance providers may consider winter tyres to be a modification. Modifications should be declared and unfortunately they usually increase the cost of your premium. 

However, most providers in the UK have signed up to the Association of British Insurers Winter Tyres Motor Insurance Commitment. This recognises the safety benefits of winter tyres and means they can be fitted without having to tell your insurer.

Check with your provider to see if they’ve signed up to the winter tyre commitment. 

Just make sure you change them before Spring! Because of their softer material, winter tyres wear out more quickly, give you worse fuel efficiency, and present traction and handling issues.

5 Star Defaqto rated cover
5 Star Defaqto rated cover

5 Star Defaqto rated cover

RAC Comprehensive Car Insurance Plus has been given a 5 Star Rating by Defaqto.

Get a quote online today.

Get a quote

3. Leaving your car's engine running to warm it up or de-ice your windows invalidates the insurance if the vehicle is stolen

TRUE

You could be taking a massive risk by leaving your car unattended with the engine running, no matter what the reason. 

Most policies have a ‘keys exclusion’ clause, meaning that you won’t be covered if your car is stolen while you leave the engine running.

4. Car crime is far more likely around Christmas

TRUE/FALSE

Do motor theft claims fall over Christmas? Sort of: whilst there are fewer claims on Christmas Day and Boxing Day compared to the rest of the year, the Christmas period as a whole tends to see an unfortunate spike in car crime.

According to the Office for National Statistics (ONS), last year, over 101,000 cars were stolen - with January and December having the highest totals for car crime.

As long as you exercise your usual levels of caution, you can tuck into your turkey worry-free!

5. You can be fined for leaving the engine running to defrost your windscreen

winter-driving-myths-windscreen

TRUE

Leaving your car running while stationary is often referred to as engine idling. It’s an offence under Rule 123 of The Highway Code and authorities have the power to issue £20 fixed penalties for any contravention. 

However, the chances of being fined are slim as police forces in England and Wales only enforced 494 penalties between 2015 and March 2019. 

6. Insurers will always pay out if you crash on ice as it’s not your fault

FALSE

As a driver you’re responsible for your actions behind the wheel. In cases where other road users aren’t involved you could find yourself with an ‘at fault’ claim. 

If you’re in an incident involving another driver, all the relevant circumstances will be considered as usual. Remember, stopping distances could be up to 10 times longer on ice than under dry conditions.

7. You must carry a winter emergency kit in your car by law

winter-driving-myths-breakdown

FALSE

There’s no law requiring drivers to carry any kind of emergency kit, although it’s definitely wise as the weather turns colder. 

You may want to pack warm clothes, a de-icer and jump leads along with other helpful items.

See what to pack in your winter emergency breakdown kit.

8. It's illegal to drive with ice on your windscreen

winter-driving-myths-de-ice

TRUE

Rule 229 of the Highway Code says: “Before you set off you MUST be able to see, so clear all snow and ice from all your windows.”

If your windscreen is obstructed in any way, the police can fine you £60. No matter how tempting it is to set off with a partially clear windscreen make sure your windows are fully de-iced before taking to the road.

In addition, whilst there is no law stating that it’s illegal to drive with snow on your roof, if it falls onto your windscreen or into the path of another vehicle then you could be fined for driving without due consideration. It’s not worth the risk, so always make sure your car roof is clear before you move off.

9. Floodwater damage isn’t covered by insurance

TRUE AND FALSE

Some insurers will cover floodwater damage. It’s best to check your policy with your provider, especially if you live in a flood-prone area. 

If water is deeper than 4-6 inches (10-15cm), it’s best not to attempt to drive through it in an ordinary car.

Has the weather caused you to get your vehicle stuck in the mud? Here's what to do.

10. Winter driving is dangerous because of reduced daylight hours

TRUE

This one should come as no surprise really.

According to The Royal Society for the Prevention of Accidents (RoSPA), around two in five of all collisions year round happen when it’s dark. 

It's difficult to be able to say that driving in the dark is more dangerous than driving in daylight; whilst there are more of us on the road in the day, there are a series of extra factors which make driving at night dangerous, chief of which is reduced visibility.

We also have to deal with hard-to see pedestrians, less-confident new drivers who may not have driven much after dark, and changes from well-lit to poorly-lit areas which demand our eyes adjust quickly.

Darkness is particularly dangerous when combined with poor weather and road conditions.

Drivers should remember their ‘FORCES’

Fuel – Don’t risk running out of fuel – top up before you set out

Oil – check it’s at the right level to reduce the chances of overheating in traffic

Rubber – tyres need to be properly inflated and in good condition to give your car a safe, sure grip on the road. Your windscreen wipers also have to work extra hard in cold and wet conditions

Coolant – this does a vital job in ensuring the engine runs at the right temperature. If it’s not between the ‘min’ and ‘max’ levels, this could be the sign of a problem so contact a good garage without delay

Electrics – you’ll need your lights on during any heavy downpours and of course during the shorter days – so check they are all working. The electrics also control your indicators and windows, so check there are no problems

Screenwash – helps keep your windscreen clear

Book a mobile mechanic

1 https://www.rospa.com/rospaweb/docs/advice-services/road-safety/drivers/driving-at-night.pdf
2 https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/755698/rrcgb-2017.pdf 
Roadside cover from £5.29 a month*
Roadside cover from £5.29 a month*

Roadside cover from £5.29 a month*

• FREE MOT on selected cover – worth up to £55
• We get to most breakdowns in 60 mins or less
• Our patrols fix 4/5 breakdowns

Buy now

*At least 10% of new customers pay this for single-vehicle Roadside (Basic). T&Cs apply.

*At least 10% of new customers pay this for single-vehicle Roadside (Basic). T&Cs apply.

You might also like

Seven car insurance myths debunked

Seven car insurance myths debunked

From parking in a garage to driving other cars, discover the truth behind some common misconceptions and myths about car insurance.

12 ways you could accidentally invalidate your car insurance

12 ways you could accidentally invalidate your car insurance

How could you invalidate your insurance? To help keep you covered, here’s our guide to the behaviour that could leave you driving without insurance.

The top 10 cheapest cars to insure right now and why

The top 10 cheapest cars to insure right now and why

Here’s the 10 cheapest cars to insure in the UK in 2019 as well as our guide to what factors can influence your premium.

Video

RAC breakdown service during a snowy, wintery storm.

How to reduce the chances of breaking down in cold weather

Avoid a cold weather breakdown and get your car ready for winter with the latest motoring advice and tips from the RAC. Is your car ready with rain and snow?

RAC mechanic checking over a car engine during a snowstorm.

Ten signs your car isn’t ready for the winter

Cold conditions over the winter can exacerbate any underlying mechanical problems with your car and even lead to a breakdown.

Woman driving in snowy conditions.

How to save money when driving in the winter

How to save money when driving in the winter. Follow RAC Drive's money saving tips and advice to cut the cost of your motoring in the cold UK weather.

smiling man with winter hat and sunglasses driving by the seaside

Should you use your air-con in the winter?

There are plenty of myths around air-con, but what should you really be doing in the winter? Here is the RAC's complete guide on air con in your car.

Removing ice from a window with scraper.

Top car tips in the extreme cold – DIY fixes to try

In addition to winter breakdowns, RAC members report a range of different problems when the temperature drops. Here are some of the biggest hazards.

How to stop your car windscreen freezing on the inside

How to stop your car windscreen freezing on the inside

Now that the cold and wintery weather has set in, you will have noticed your car covered in ice. Keep your windscreens clear of ice this winter with these tips.

Trees blown down by the wind.

How to drive safely in windy weather

Read the latest windy weather driving safety advice with RAC Drive. From tips to tackling hazardous conditions to advice for staying safe on the road.