Valvoline 20W-50 4 Stroke Motorcycle Oil - 1qt (Case of 6) (798152-6PK) Special cleaning agents and dispersants help prevent deposit formation and keep engines clean Shear stable viscosity improvers help resist oil film breakdown Silicone additives to prevent foaming and help maintain proper lubricating film Special additives help protect the engine from combustion by-products which cause corrosion For any product use or product technical questions call 1-800-TEAM-VAL