Checking your coolant/antifreeze level is a simple process and should only take a few minutes every couple of weeks.
To check your car’s coolant/antifreeze level, find the reservoir and check the fluid against the minimum and maximum markers imprinted on the side. The colour of the coolant/antifreeze should make this easy to do, but you may need to give the bottle a wipe to see the markers clearly.
Ideally, the level should always be closer to (or directly on) the ‘maximum’ mark, so if it’s dropped towards ‘minimum’, we’d recommend topping it up.
When adding any liquid to your car such as Prestone Coolant/Antifreeze, it’s important to ensure the engine has cooled before unscrewing the cap of the expansion tank as the coolant operates at around 90°C. After filling, make sure that the cap of the expansion tank is replaced and tightened.
If the level is below the minimum line, top it up to the maximum line and monitor on a daily basis. If it keeps dropping, you’ll need to check for leaks or get a mechanic to check for you.