STP STP Oil Treatment (15 oz.) - 12 Pack

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. About this item Provides extra engine protection for all car, light truck and SUVs Anti-wear agent with a viscosity improver Corrosion fighter that helps protect your engine in severe operating conditions Fights sludge build-up and keeps your engine clean Add one bottle to 4 or 5 quarts of oil See more product details