Prestone All Vehicles Antifreeze+Coolant - Ready To Use (50/50 Pre-diluted) is an optimized formula for All Vehicles; makes, models, years and fluid colours. It's Patented Cor-Guard® Technology (best coolant innovation in decades) works with all new engines, and also is backward compatible - providing instant protection in older engines. Not only does Prestone Coolant Technology manage engine temperature all year round and protect against freezing, it also uniquely protects the engine from serious damage. No matter what type of coolant is currently in your engine, a single top-off of Patented Cor-Guard® Technology instantly protects parts better from corrosion, buildup, pitting, scaling, rust and other damage; a complete replacement of all coolant protects to the maximum. Internal engine damage can cause parts failure, resulting in expensive auto repair shop bills and downtime inconveniences. Using Prestone Antifreeze+Coolant protects against engine issues and those inconveniences. This patented fluid is designed to last 10 years / 500,000 kilometers and will protect the internal parts of the engine for 10 years / 500,000 kilometers.