Yes. Thanks to its unique and patented formula, Prestone Coolant/Antifreeze can be safely mixed with another product within the cooling system without causing damage or gelling. It’s also guaranteed to be compatible with all cars, vans, or light trucks.
That means there’s no need to flush your car’s cooling system before adding Prestone Coolant/Antifreeze. Simply pour the product into your coolant reservoir – it’s that easy.