As we knew our freezer was measured at 18C, we mixed at a ratio of 1.5:1 which should have given us protection down to 19.5C. However, although there was some liquid evident in the syringe it was too frozen to squirt until it had been out of the freezer for a few minutes. Tesco Concentrated Screen Wash (& Tesco Ready To Use) The cleaning ability was adequate if not spectacular, clearing the oil but leaving a remnant of our glue. This means that the Tesco wash is good value, but you’ll need to use more of it to clean away screen grime and refill the reservoir more often. Prestone Max Visibility Screen Wash Do you have a question about Prestone Screen Wash? Maybe you’re new to driving and want to know more about how screen wash works and how often you should use it? Now that we’ve cleared things up and busted the myths of screen wash, it’s time to get serious and talk about why it’s so important. There are five very good reasons you should use high-quality screen wash, including: There’s no cheaper way we could find of making screenwash than this, except maybe putting a squirt of Fairy Liquid in the reservoir. But as with most things, you get what you pay for and the tablets seemed to do little more than colour the water .

For winter driving, we recommend a 50:50 mix of screen wash and water; this ensures maximum freeze protection. In summer, you can reduce the amount of screen wash you use; a 30:70 split is best. With the needle inserted, carefully adjust the nozzle so that the opening is directed at the windscreen. Then, remove the needle and test the spray. If it’s still not properly aligned, you may need to repeat the process. Choose concentrated or ready to use screen wash– Our ready to use screen wash is convenient, while our concentrated version lets you adjust the ratio of water depending on the conditions. They both have the same properties, so choose the one that’s best for you. 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. VerdictWe’ve dialled up the concentration level of our Eco Refill Winter Screen Wash, with a 500ml bottle capable of making up to 5 litres of screen wash. That means you can keep and use the same 5l bottle, topping it up with Eco Refill and water as and when you need to replenish your screen wash. 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. Screen wash is an essential fluid that’s used to clean windscreens and, on some cars, rear windows. Having screen wash in your car is a legal requirement; you’ll fail your MOT without it.

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? It certainly seems to make financial sense if you do. There are usually two types on offer; ready mix or the concentrate. We tried both, but the results were almost identical so we’ve concentrated on the concentrate. 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. 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 Removing even the toughest deposits in a fraction of the time of standard screen washes, you’ll use less and save more when filling your car with Prestone Extreme Performance Screen Wash.

How do I use Prestone Screen Wash?

Cars rely on two different antifreeze products — antifreeze in screen wash and coolant/antifreeze. Both serve different purposes, but some people get the two muddled up, or think they’re the same thing. First we calculated the costs of each in their winter and summer mixes. For the former we chose coverage down to about -10C, where there was a choice of mixes. If you’re tempted to squirt a few drops of washing up liquid into your car’s screen wash reservoir, we wouldn’t recommend doing so. While household cleaners are great for cleaning up dirt and grime around the home, they’re not fit for use on cars, and contain harsh chemicals which can damage paintwork and other metallic surfaces. Not only that, but household cleaning products offer zero protection against freezing, leaving you without protection when the temperature drops. By simply adding water to the super-concentrated formula, 500ml of Eco Refill makes 5 litres of winter screen wash. Use Eco Refill in an empty 5-litre screen wash bottle and save over 75% plastic each time! The Halfords wash gave the best cleaning performance and excellent freeze resistance at a reasonable price so takes the win here, but we’d recommend buying the ready mix rather than the concentrate as – bizarrely – it’s better value.

Decades of car maintenance know-how have gone into Prestone Extreme Performance Screen Wash, so you can be assured of outstanding performance with every spray. And with year-round cleaning guaranteed, you can use the same screen wash through all four seasons – for maximum cleaning performance and convenience. To help, we’ve put together a list of frequently asked questions that should fill you in on all things screen wash. Take a look below. What is Screen Wash?

It will dramatically reduce sun dazzle – sun dazzle is dangerous and can easily cause accidents any time of the year. Making sure the washer reservoir is kept topped up will ensure you can keep the windscreen free from smears and streaks which cause dazzle. In summer, it makes up to 10 litres and give protection against freezing down to -2C. If you need to go any colder it’ll need to be used 1:1 or even neat. The instructions say this will remain fluid down to -10C, so unsurprisingly it was solid after a few hours in our freezer compartment. 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. Plus, summer means the arrival of a sneaky danger — sun dazzle. Dazzle occurs when the sun’s rays shine on dirt and grime on a car’s windscreen, limiting visibility for the driver. If you keep your windscreen free of dirt and smears, then you’ll get better visibility and won’t have any nasty sun related surprises. Myth 2: Don’t use screen wash –water does the same thing Get yourself some high-quality concentrated or ready-to-use screen wash. If using concentrated, make sure you use the correct ratio of water and screen wash for the season. You may also need a funnel to help with pouring depending on the type of bottle your chosen product comes in.