Ford Fiesta - changing the air filter and the coolant (antifreeze) *
Changing your car coolant - changing the air filter Prepare your car for cold weather. If your engine has no antifreeze the coolant may solidify and crack your engine block. Undiluted coolant can protect your car down to about -30 ℃ (Ethylene glycol) Coolant is not expensive and you should check your coolant periodically (every couple of years) especially if you live in an area where the temperature can drop below freezing. You can get a small test gadget to test your antifreeze (coolant) for a couple of $$££. Changing your car AIR FILTER is another simple job that is is very easy to do and will save you a trip to your service centre.