STP Oil Treatment

Help protect against engine wear. Lubricates moving parts. Helps quiet noisy valves & lifters. Contains ZDDP anti-wear agents. E-Z flow bottle. Scientifically engineered to keep your engine running strong! Protects Internal Engine Parts: High-quality base stock combined with ZDDP and VII provide lubrication & cooling. Helps Quiet Noisy Valves & Lifters: Viscosity index improver (VII) cushions engine parts to reduce metal-to-metal contact. Anti-Wear Agent: Zinc diakyl dithiophosphate (ZDDP) helps provide a layer of protection for engine parts. Questions or comments? Please visit or call 1-888-Go4-Stp1 in the USA.