Cars from about year 2000 on use a long-life coolant which only needs to be changed every 5 years. Cars prior to that should be changed every 3 years. When we're servicing your car, we check the antifreeze strength for you, or you can just call in for a free check. Here at Car Connection we are now using long life coolant on all our customers cars for best results and cost efficiency.
The reason for regular changes is not to stop the car from freezing, but to stop the cooling system from corroding. This corrosion is like the engine rotting from the inside. This can cause head gaskets to blow, and radiators, pipes, hoses, and water pumps to leak. This corrosion also causes the radiator & heater to block, resulting in overheating. We have developed a specialised coolant change machine which flushes the system completely, then adds new antifreeze.