Peak 10X 50/50 Antifreeze + Coolant is a premium universal formula designed for all makes and models of North American, Asian, and European passenger cars, SUVs, motorcycles, and light/medium duty trucks. This 2-pack contains two 1-gallon bottles of ready-to-use 50/50 prediluted coolant that requires no water addition.

The advanced formula contains 10X the scale-fighting inhibitors coupled with robust organic additives for superior cooling system protection. It protects all cooling system metals including aluminum components and resists rust and corrosion damage. The formula provides freeze protection down to -34°F and boil protection up to 265°F.

Peak 10X meets ASTM D3306 and ASTM D4985 performance standards and is free of phosphates, borates, nitrites, silicates, and amines. It complies with European phosphate-free specifications and Japanese silicate-free requirements. When used with a complete cooling system flush, it provides up to 300,000 miles or 10 years of maximum protection.