SIERRA® Antifreeze/Coolant is formulated with propylene glycol (PG) rather than ethylene glycol - the base for traditional antifreeze. Because of its PG formula, SIERRA® Antifreeze is less toxic and therefore safer for people, pets and wildlife than conventional antifreeze. It is a premium automotive coolant that provides excellent freeze-up and boil-over protection and outstanding corrosion protection.

• Provides excellent engine protection against freeze-up, boil-over and corrosion, while maintaining heat transfer properties
• Helps prevent accidental poisoning of pets
• Helps protect wildlife in the environment
• SIERRA® Antifreeze is a propylene-based antifreeze that requires the use of a special ball tester to check its freezing point