Petroleum Service Company carries a variety of Environmentally Safe Antifreeze/Coolants to meet all of your requirements. Environmentally Safe Antifreeze/Coolants are a premium quality; propylene glycol (PG) based antifreeze that provides engine protection comparable to that provided by premium conventional ethylene glycol (EG) based antifreezes.

The Environmentally Safe Antifreeze/Coolants include : Sierra Antifreeze PG (Green) .