Prestone Dex-Cool Concentrate: OEM-Approved Protection for GM Vehicles

Prestone Dex-Cool (AF888) is a concentrated antifreeze/coolant specifically formulated for use in General Motors vehicles and other systems requiring a Dex-Cool approved fluid. This Extended Life formula utilizes Organic Acid Technology (OAT) to provide superior protection against rust and corrosion for all cooling system metals, including aluminum. As a concentrate, it allows for customized mixing ratios to meet specific climate requirements, ensuring optimal thermal management for up to 5 years or 150,000 miles.

Features

• GM Licensed Formula: Fully approved to meet GMW3420 (GM 6277M) specifications, ensuring complete compatibility with factory seals and gaskets.
• Long-Life Chemistry: Advanced OAT inhibitors prevent the breakdown of cooling surfaces and the formation of scale or sludge.
• Maximum Boiling Protection: When mixed at a $70/30$ ratio, it provides boil-over protection up to $+135°C$.
• Corrosion Shield: Protects high-speed water pump impellers from cavitation and erosion, extending the life of the cooling system.
• Versatile Application: Recommended for use in all automobiles and light-duty trucks that require Dex-Cool chemistry.

Maintaining your engine with Prestone Dex-Cool prevents the costly repairs associated with overheating and internal corrosion. It is the technical standard for maintaining the warranty and performance of modern GM cooling architectures.