STP Synthetic Oil Treatment provides extra protection for extended oil drain intervals that come with synthetic oil use. Re-formulated for use with low-viscosity oils, this engine treatment offers the same benefits as traditional STP Oil Treatment. ZDDP oil additive helps to protect against engine wear to keep your car running efficiently. These engine oil additives use detergents to prevent engine deposits so your engine runs clean, and antioxidants help to enhance oil durability by reducing oil breakdown and preventing oil burning. Add this treatment during every oil change to protect your engine without diluting your motor oil.STP Synthetic Automotive Oil Treatment - 15 FL OZ Bottle One 15 fl oz bottle of STP Synthetic Oil Treatment Engine Additive for Engine Protection Traditional oil treatment formulated especially for low-viscosity oils with extra protection for extended oil drain intervals Detergents in this STP Oil Treatment help to keep the engine clean and prevent deposits This engine oil additive enhances the oil durability using antioxidants to prevent breaking down synthetic oil This ZDDP oil additive helps to protect your synthetic oil vehicle against engine wear for efficient use Add this oil treatment product to your synthetic oil during each routine oil change for easy car maintenance This engine additive uses a high-quality synthetic base oil so it doesn't dilute your motor oil
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