To shift winter muck, you need a different type of screenwash – and Prestone has launched a number of solutions. There’s a booster which can top up your existing formula, a concentrate that you mix up yourself and a ready-to-use screenwash. Prices range from £2.99 for a 250ml bottle of the booster to £4.99 for a four-litre pack of the ready-to-use formula – check out the full range at prestone.uk.com.