Last Updated on January 14, 2024 by Stewart

Choosing a screenwash for you car is a pretty easy task, right? Not always. There are some truly shocking screenwashes out there that do a poor job of cleaning your wind screen, as well as clogging up the washer nozzles. With that in mind, I’ve collated my favourite screenwashes below.

Autoglym Ultimate Screenwash

As is the case with their other products, Autoglym have made a really brilliant screenwash. It comes in a 500ml bottle of concentrate, but you can make up to 8 litres of product depending on how you mix it.

Autoglym do recommend that for extreme winters, you can use the product neat. That is for temperatures down to -45°C. Mind you, if it were that cold, I doubt that the car would function anyway.

In the winter, I use it at a dilution ratio of 1 part product to 4 parts water. In that case, I used 2 bottles of Ultimate Screenwash and 4 litres of deionised water. That was enough to make up 5 litres of screenwash in total so I’m always good to go in terms of topping up the washer bottle. In the winter where I live, it means that it won’t freeze. At that dilution ratio, Autoglym rate at as working down to -6°C. I had an unexpected cold snap and that went to -11°C and it still worked exceptionally well.

In terms of the cleaning power, it really is second to none. A little bit of screenwash on the windscreen goes a long way. Since the winter can be a pretty dirty time, it can be a worry for some drivers that their screenwash won’t be able to keep up with the road grime. This isn’t the case with Autoglym Ultimate Screenwash. It cuts through the dirt like a hot knife through butter, and it leaves a flawless, streak free finish on the glass.

I would always recommend using deionised water, which can push up the price a bit. However, I found that Asda sells 2.5litres of deionised Car Plan water for £1.25. This is a great price (just in case it’s not in stock on Amazon).

Whilst you need to make it up yourself, it offers great bang for the buck overall. It really doesn’t have much of a smell to it, which I’m fine with as well.  Regardless of it being the summer or winter, this is the best screenwash that you can buy. There’s never been a time that I’ve used it and felt that the screen wasn’t cleaned properly.                                                                  

Autoglym Ultimate Screenwash, 500ml - Concentrated Screen Wash for Cars, Up to 8 Litres - Down to -45°C, Winter Windscreen Washer Fluid - Screenwash Concentrate Dilute for All Seasons for Windshield
  • Autoglym Ultimate Screenwash is a highly concentrated formula screen wash for cars ideal for winter weather down to -45 degrees, keeping your windscreen ice-free

Last update on 2024-07-18 As an Amazon Associate I earn from qualifying purchases.

Prestone Winter Screenwash

Despite the name, this screenwash can be used all year round. It is premixed, so it’s the simple case of pouring it straight into your washer bottle. Prestone claim that it works down to -10°C. I haven’t experienced temperatures that low. However, when I used it before at -4°C, it worked well.  

Having said that, it does leave a clean windscreen, so it’s a big plus point safety wise. Much like the Autoglym variant, it doesn’t leave any streaks on the glass. In terms of cleaning ability though, Autoglym has the edge in this regard.

However, what I didn’t like was the smell from it. It’s a bit of a strange smell, not horrific, but not the most pleasant either.

The thing with the Prestone winter screenwash is that it still performed well, and works out cheaper per 5 litres than the Autoglym Ultimate Screenwash. If it’s the case that you don’t have the time to make up the screenwash yourself then this is a really good option.

Prestone Screenwash, Ready To Use Screen Wash For Cars - Winter, High Performance Cleaning With Streak Free Formula, Maximum Visibility Winter Windscreen Washer Fluid, Removes Stubborn Dirt, 5L Bottle
  • SCREENWASH READY TO USE: Introducing Prestone Screenwash Winter, a high-performance screen wash that helps you to achieve perfect visibility in all driving conditions - it’ll make light work of whatever the weather sends your way.

Last update on 2024-07-18 As an Amazon Associate I earn from qualifying purchases.

CarPlan Demon Shot Screenwash

CarPlan are well known for their budget car care range, and Demon Shot certainly provides value for money. For use in summer months, you can use 100ml of product to create a massive 25 litres of screen wash. This does work well enough, although I did find that for baked on dust in the summer, I needed to re-apply the screenwash a few times. However, for 25 litres of screenwash for just over £5, it’s a really good deal.

With respect to winter use, to get it working down to -5 you would need to use 5 litres of water to 500ml of product. This is also very economical. With respect to how well it cleaned the screen, it did a good job. I did need to have a couple of goes at it to really clean the screen (when compared to the Autoglym Ultimate Screenwash), but after 2 attempts, it left a nice, clean finish on the glass. This was used on a car that hadn’t been washed for two weeks, so as you can imagine, there was a nice build up of grime on the windscreen with only the wipers to help clear it away.

A nice bonus of this is that it can also be used neat as a de-icer in the winter by putting it into a spray bottle. This worked really well and melted the ice in quick time.

If you’re on a tight budget, but still want a really good screenwash that will need a couple of applications to give a flawless finish, you should pick up the CarPlan Demon Shot. It also has a pleasant cherry smell as well which is a nice touch.

CarPlan Demon Shot Screenwash Booster, 500ml (Pack of 1)
  • POWERFUL SCREENWASH BOOSTER: CarPlan Demon Shot 500ml enhances your screenwash's freezing performance, ensuring you're prepared for unexpected winter conditions. Simply add it to your washer bottle to improve freezing point protection.

Last update on 2024-07-18 As an Amazon Associate I earn from qualifying purchases.