Keep metals protected from harsh conditions with this concentrated antifreeze coolant from Zerex. This antifreeze coolant has a freezing point of -34 degrees and boiling point of 330 degrees. The specific gravity is 1.1175 @ 60F and the pH is 9.0 (+/-1.8). This antifreeze coolant comes in 1 gal. Its applications include: Silicate- and phosphate-free formula is automaker-approved for use in GM and SAAB vehicles that require OAT DEX-COOL, and in GM and SAAB vehicles. OAT formula. 150,000 mi./5 yr. For use with passenger cars and light trucks.