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The best de-icer for safer driving this winter

  • De-icer is the quickest way to clear a frozen windscreen
  • These sprays are perfect for those miserable mornings in winter
  • Some work down to -50°C

Written by Ryan Gilmore Updated: 3 September 2024

Ice; nice in a glass of lemonade on a hot summer’s day, but not very nice when you have to resort to a bottle of de-icer spray to get rid of it. While you can get to work with a decent ice scraper or chance throwing boiling water onto the ice (don’t, you’ll do damage), de-icer is far quicker and less strenuous. As part of our best winter products collection, take a look below at our favourite de-icers right here.

Almost half of motorists in the UK admit to not fully clearing their windscreen of ice, something that could land users with a £60 fine under the Road Traffic Act of 1988. The research, undertaken by Autoglym, also found that instead of dedicated de-icers or ice scrapers, motorists were using gloves, credit cards and even spatulas. These methods won’t be anywhere near as effective at ice removal as a dedicated product.

De-icer involves a lot more science than a humble item like a snow shovel. In order to understand how de-ice works, you’ll need to remember your freezing points. Water (the main component of ice) freezes at 0°C, the reason winter mornings often require a de-icer. De-icer works by lowering the freezing point of water, which melts the ice away. Most will use ethylene glycol (a nasty chemical) to achieve this. Although magnesium chloride (also nasty) is used for exceptionally cold weather.

The best de-icer at a glance:

Editor’s pick: Autoglym De-Icer – Buy from Amazon.
Best two-in-one: CarPlan De-Icer & Pre-Icer – Buy from Amazon.
Best de-icer aerosol: Quebec De-Icer Spray X2 – Buy from Amazon.

We still champion the ice scraper for its value for money and eco-friendly way of clearing a windscreen but accept that de-icer is a great way of easily removing ice in a hurry. We’ve rounded up the best de-icers for tackling those early mornings right here.

The best de-icer for your car

A fancy option for clearing ice from your windscreen, the Autoglym De-icer is effective at temperatures as low as a Siberian -50°C, meaning there's no worry that a cold snap will render it useless.

It's safe to use on all car surfaces and can even be used to unfreeze door locks making it the best choice for when the weather is harsh.

Pros

  • Excellent for UK weather
  • Works on door locks

Cons

  • 500ml isn't the best
Best two-in-one
Price: $18.18
They do say prevention is better than cure and Demon Ice from Car Plan might just convince you of that. Spray your windscreen the night before and leave Demon Ice to make a protective coating on your windscreen which means that no ice will have formed by the morning and you can quickly drive away. If you perhaps forget to spray in the evening, don't worry, as it also acts as a pretty effective de-icer.

Pros

  • Saves morning screen clearing
  • Quick and easy

Cons

  • You need to remember to apply it in the evening
Great value 6-pack
Price: $49.81
Stock up for the winter months with this six-pack from Prestone. Each can contains a tough de-icer that will fight ice in temperatures as low as -40°C and help to prevent re-freezing. We may not get those types of temperatures here in the UK, which means the Prestone spray will get to work quickly.

Pros

  • Works quickly
  • Prevents re-freezing

Cons

  • Spray jet means you use more
Best de-icer aerosol
According to Quebec, this de-icer not only works well in breaking down the ice on your windscreen, but it also helps free up locks and mirrors as well. Once applied, breaking the ice down further should be a breeze if you have to use a scraper afterwards.

It only works in temperatures up to -20°C, which will be an issue if you live somewhere really cold. But for the majority of UK motorists, you shouldn't worry about it.

Pros

  • Breaks down the ice quickly
  • Can be bought in a pack

Cons

  • Not designed to work in the coldest of temperatures
A simple bottle of de-icer, Triple QX's De-Icer is an effective way of clearing ice quickly on a cold winter morning. It's effective at temperatures as low as -25°C and both clears existing ice and prevents ice from reforming on your windscreen.

Pros

  • Useful for winter use
  • Affordable

Cons

  • Not good for the planet
Sitting at great value for money, this aerosol de-icer from CarPlan is a great way to dissolve ice from your windscreen without spending too much.

Unfortunately, it's only effective down to -15C, which isn't brilliant news for those who live in harshly cold areas of the globe.

Pros

  • Great value
  • Easy to apply

Cons

  • Ineffective at arctic temperatures
Best rain repellent de-icer
Two-in-one products really come into their own when each one has a useful job. RainX's de-icer which doubles as a rain repellent is no different and is thankfully very easy to use.

To apply, you need to apply a protective layer to your windscreen before spreading it with either your wipers of with a cloth. This needs to be repeated a couple of times to get the best protection, and with only 500ml at your disposal, it can be quite easy to chew through.

Pros

  • Doubles as rain, snow and hail repellent
  • Effective de-icer as well

Cons

  • We wish the product came in a larger size than 500ml
Best pre-icer
Price: $24.35
There are a few steps you can take to ensure your windscreen doesn't freeze over which will mean no need to get out the de-icer and ice scraper. These range from parking in a garage to covering your windscreen.

A pre-icer can be also used to prevent ice from forming on your windscreen in the first place. And CarPlan's pre-icer works in temperatures of up to -25°C.

Pros

  • Does the job quite well at loosening the morning ice
  • Good value

Cons

  • Other de-icers work at much lower temperatures

FAQs – what you need to know about de-icer

Can de-icers work on more than just glass?

The primary duty of a de-icer is to remove ice from your windscreen. But it can also be used to remove ice from the lights and mirrors present on your car. They can also be used on frozen door locks, a real possibility in extremely cold temperatures. Some even double as rain repellents, such as the RainX de-icer. For this scenario alone, it’s a good idea to keep some de-icer in your home. Even the best ice scrapers won’t do much on a seized door lock.

One thing it won’t work effectively on is rubber door seals, potential freezing spots that can prevent your car’s door from opening. The good news is that dressings from brands like Autoglym can prevent this from happening altogether. And if you need a bit more grip in those tricky conditions, a set of snow socks are helpful items for your tyres.

The one other thing it won’t save you from is a completely snowed-over windscreen. For those instances where you’ll need a set of snow chains, a full-on snow brush will be a more useful bet.

How we choose
All of these de-icers have been hand-selected by our team of experts who have spent hours investigating and researching de-icers to make it easier for you to find the very best, and we’d never recommend a product we don’t believe in.
Where possible, we also test and share the latest and best products you should know about.

Ryan Gilmore is the Deputy Autos and Tools Editor for Parkers, specialising in car cleaning and hand tools. A veteran car cleaner; if it details, waxes or washes he’ll be on hand to make sure it’s worth your money.

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