It is very important that you check your antifreeze a couple of times a year. As well as preventing the water in your engine from freezing, it also helps to cool the engine and prevent it from overheating. You need to remember that when water freezes and then thaws it expands and if this happens within your engine, you could be in serious trouble. This is why you must have the correct level of antifreeze in your engine. Always check your vehicle owners’ handbook for guidance. As a general rule, 50/50 is sufficient. However, if you live in a region where the temperature regularly drops below -10C then you will need to increase the antifreeze to water ratio to a maximum of 80/20. Remember that antifreeze is corrosive and paradoxically can damage your engine.
If your cooling system is not working properly then the engine can overheat and sustain substantial damage. The most common damage is to the head gasket and this can cost a substantial amount of money to repair. In the worst cases the whole engine becomes irreparably damaged and needs to be completely replaced. So it pays to do regular maintenance on your vehicle so that the cooling system is in top working order. This can be done easily on your car’s annual service and your mechanic will be able to see and repair any minor issues that arise. Antifreeze should be pink or blue in colour and if your antifreeze is looking discoloured it needs to be changed immediately.