Prestone Engine Coolant / Antifreeze

Prestone Engine Coolant & Antifreeze: Nearly a Century of Cooling System Innovation

Prestone is not a newcomer to the engine coolant space — it practically invented it. Since 1927, the brand has been at the forefront of antifreeze and coolant chemistry, and today its lineup remains one of the most trusted and technically advanced in the industry. If you're shopping the broader engine coolant and antifreeze category, understanding what sets Prestone apart is worth your time before you buy.

Patented Cor-Guard® Technology

At the heart of most Prestone coolant formulas is the company's signature Cor-Guard® inhibitor system. Cor-Guard® technology protects against rust, corrosion, scale, buildup, and clogging of all cooling system components. Unlike conventional antifreeze products that address only basic corrosion, Cor-Guard® is engineered to safeguard the entire cooling circuit — from the radiator and water pump to the engine block passages and coolant hoses — where buildup and deposits can quietly cause serious damage over time.

A Product Line Built for Every Vehicle

One of Prestone's most practical strengths is the breadth of its antifreeze lineup, designed to cover virtually any vehicle on the road:

• Prestone All Vehicles (Universal): Designed to last and protect vital engine parts for 10 years or 300,000 miles, this formula includes patented Cor-Guard® technology and provides instant protection to all engines, new and old.
• Prestone MAX: Guaranteed to work in all vehicle makes, models, and years with gas or diesel engines, it mixes and works with all antifreeze and coolant colors and formulations including OAT, POAT, HOAT, and IAT.
• Prestone Platinum: This advanced product delivers extreme protection against freezing temperatures down to -50°F and overheating up to +268°F, while providing industry-leading protection from engine-damaging rust, corrosion, buildup, and scale.
• Prestone MAX Regional Variants: Prestone also offers regionally tuned formulas including MAX European Vehicles, MAX American Vehicles, and MAX Asian Vehicles antifreeze and coolant products.
• Prestone Command® (Heavy Duty): Prestone Command® Nitrite Free Extended Life and Nitrated Extended Life antifreeze and coolant are both designed to work with all Class 1-8 vehicles, heavy duty and light duty alike.

Long-Life Guarantee and Universal Compatibility

Prestone's virtually non-depleting corrosion inhibitors are rated for 10 years or 300,000 miles, and the formula offers absolute compatibility with all modern engine metallurgy, polymers, and other coolant and antifreeze technologies. This makes Prestone an especially convenient choice for mixed fleets or households with multiple vehicles — one formula can confidently top off or replace whatever coolant is already in the system.

In 1927, Prestone created the first ethylene glycol antifreeze and coolant formula that changed the way engines stay protected, and a century later, Prestone is still leading the way with premium formulations made using high-purity water engineered under strict quality controls to meet or exceed rigorous ASTM industry standards. That lineage matters when you're trusting a product with one of the most critical systems in your vehicle.