OES ~ Oil Efficiency Shield



Castle® OES™ , with its unique blend of friction modifiers, dispersants, antioxidants, and extreme pressure lubricants will maintain engine power and performance by reducing internal engine friction and wear. Continued use of OES™ with every oil change, will protect against the formation of harmful sludge, varnish, and valve deposits. This will help the motor run cooler and to reduce oil consumption and oil thickening. The results of using OES™ in the long run will cut down on maintenance cost and less down time for fleets. OES™ is compatible with synthetic motor oils.


  • Automotive
  • Farm Equipment
  • Marine
  • Truck
  • Buses
  • Heavy Equipment


1. 8 ounces for every 5 quarts of motor oil per oil change.


  • 8 oz (#C0847) 24/case

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Castle AutoChem Products Ltd services Canadian customers only.

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