Oil Treatment

Scientifically Engineered for Conventional or Synthetic Oils
High Quality Base Stock
Carrier of active ingredients to help protect internal engine parts
Viscosity Index Improver (VII)
Cushions engine parts to help reduce metal-to-metal contact
Helps reduce oil consumption
Zinc Dialkyl Dithiophosphate (ZDDP)
Anti-wear agent that helps provide a layer of protection for engine parts
STP Oil Treatment, 15oz:
For all cars, light trucks and SUVs
High-viscosity formula
Designed to help fight metal-to-metal friction
Provides a thicker cushion between moving engine parts

Ingredients:
Ingredients: Contains Zinc Dialkyl Dithiophosphate.

Instructions: . Directions: Add 1 bottle to 4-5 quarts of oil at or between oil changes.