Prestone PSCW0029A Winter Screenwash, 5 Litre

Product Information

However, there was some good news. As we didn’t need the full -20C protection we economised and tried a few different concentrations to see how they fared in the freezer. A mix of 50/50 with water was still squirting after 12 hours at -18C, so it would seem Halfords is understating its performance. There is little aroma, no foaming and the fluid turned to ice as soon as the temperature dipped below zero. In the cleaning test it left smears from the oil and had no more effect on the glue than plain water. Unless your classic is very old, you’ll need to make sure there is some fluid available when you press the button to wash the windscreen. In winter it will help get rid of road grime and salt, in summer it helps clear fly splats, dust and diesel film. One myth surrounding screen wash is the idea that ready-to-use products don’t offer good value for money. The great thing about ready-to-use screen wash is that it’s been pre-mixed by professionals, so you can always guarantee great performance and freeze protection.

As you might expect from the well-known and respected brand like Autoglym, the screenwash did well in the cleaning tests – but it’s expensive to use at winter temperatures.

How We Rated

The results make it difficult to believe these tablets are much more than just dye, and to compound our frustration the liquid also seemed to stain our containers and give our hands a blue tinge. Verdict

Using Prestone Screen Wash is easy. Simply add enough screen wash to the reservoir so it meets the ‘max’ line, and then use your car’s wiper function (normally an arm switch on the steering wheel) to apply it to the front and rear windows. We tried seven different types, testing them for freeze resistance in winter conditions and cleaning ability at weaker summer concentrations. If that wasn’t enough, we’ve solved the problem of accidental spills by redesigning our screen wash bottles. No more sloshing screen wash all over the engine bay or having to use a funnel; simply pour and go for unrivalled visibility and cleaning power out on the road. How it Works At the summer mix ratio the cleaning performance was adequate, clearing the oil and leaving a small residue of glue, but no smearing. The instructions recommend it is used at the ‘optimum clean’ dilution ratio of 1:9, which stops freezing down to a claimed -3 oC.Below is a video we posted on our YouTube channel that shows us testing one of the screen washes. As you can see, it takes less than a minute to top up the screen wash and the bottle on this particular screen wash had an “easy-pour” spout that made pouring in the formula far easier and less messy.

Powering through dirt, grime, and smears, Prestone Extreme Performance Screen Wash is the only product you’ll ever need to keep your windscreen clean and clear. Screen wash is available in a variety of colours including blue, yellow, green, and pink. It’s made from a mix of water, antifreeze (usually alcohol) and cleaning agents, which are added to help remove dirt and ensure a streak-free finish. How do I use Prestone Screen Wash? The great thing about Prestone Screen Wash is that it’s safe to mix with other products. That means you can add screen wash anytime without worrying about contamination and a drop in cleaning performance. How does Prestone Screen Wash work? It will prevent freezing – make sure you use a high-quality screen wash with a low freeze rating. That way, on cold nights, the water in the reservoir won’t freeze solid and cause damage.

Halfords Demister Pad

Top up the screen wash – Pour screen wash directly into the reservoir without removing the filter that sits inside the filler tube. You can use a funnel if needed to avoid spillages. Continue pouring until you start to see fluid coming up the transparent tube; fill to the ‘max’ line and replace the cap. It’s the best way to remove streaks, bugs and dirt from the windscreen– car windscreens are exposed to all sorts out on the road, and water alone just isn’t able to cut through that dirt. Thanks to powerful cleaning agents, screen wash makes light work of most marks, streaks and stains, so you’re guaranteed excellent visibility.