US giant Prestone sparked the revival of ready-mixed washes when it hit the UK a couple of years ago, but this is a concentrate version of its Screen Wash. We diluted it as suggested on the pack, at ...
Packed with de-icer and a rain repellent, this comes ready to pour. But you only get four litres in this pack, rather than rivals’ five litres. It matched the cheaper Concentrate in the chill test and ...
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