For over 50 years, Old World Industries has manufactured some of the most trusted antifreeze, coolant, and heat transfer fluid brands in North America. Petroleum Service Company stocks the complete OWI portfolio, including: PEAK®, Final Charge®, Fleet Charge®, Thermal Charge®, Full Force®, and Sierra®. We carry products for applications from passenger vehicles to over-the-road fleets to industrial HVAC and process cooling systems. Whether you need a few cases for  for a service bay or a bulk drum for a fleet yard, you'll find it here with competitive pricing and fast shipping.