We recommend using Prestone Cooling System Flush each time you flush the radiator. Ideally, this should be done in line with the vehicle’s service schedule.
Remember, Prestone Cooling System Flush should be used as an alternative to water whenever you flush the system to remove the old coolant/antifreeze. Unlike water, the product won’t contribute to limescale and corrosion, instead removing deposits and contaminants which can accelerate decay in the system.
If you flush with Prestone and then refill the system with Prestone Coolant/Antifreeze, it’s guaranteed for 10 years and will protect your car for 300,000 miles, saving you time and money.