Star Tron Star Cool Hi-Performance Extended Life PG Coolant Maximize engine performance and longevity with Star Tron Star Cool Hi-Performance Extended Life PG Coolant. This advanced, pre-mixed propylene glycol solution leverages PCT and Poat technologies to deliver unmatched efficiency, corrosion resistance and the ability to seal minor leaks. It's specially formulated to prevent boilovers up to 265F and protect against freezing at temperatures as low as -26F. Ideal for high-performance and diesel engines in any environment, it offers effortless maintenance and consistent, dependable performance straight from the bottle. Features: Engineered with PCT additives to maintain optimal temperatures for peak horsepower and efficiency Poat technology for superior corrosion resistance and leak prevention Propylene glycol base Ideal for high-performance and diesel engines Offers protection against boilovers at 265F and freezing down to 26F Ready to use pre-mixed formula simplifies maintenance Seals pinhole leaks and small fissures at operating temperatures Meets all OEM and Astm specifications, ensuring reliability and performance across all 50 states