Red Line 21405 15W40 Synthetic Motor Diesel Oil -1 Gallon OverviewBrand: Red Line Synthetic OilManufacturer's Part Number: 21405Part Type: Diesel Engine OilProduct Line: Red Line Synthetic Motor OilSummit Racing Part Number: RED-21405Oil Type: Synthetic Diesel OilEngine Oil Weight: 15W40Break-In Oil: NoZDDP Enhanced: YesOil Volume: 1 gallonQuantity: Sold individually.Red Line Synthetic Diesel Motor Oil Red Line synthetic motor oil is a unique formula designed to provide the highest protection, cleanliness, and superior drain intervals—with the lowest friction for your diesel engine. Features, benefits, and details include: * Fully-synthetic ester formula for passenger cars, light trucks, performance vehicles, and marine applications* Excellent wear protection and friction reduction across a wide range of operating conditions* High detergency allows extended drain intervals and provides increased cleanliness* Improved fuel economy and ring seal for more power* Superior high-temperature stability and oxidation resistance increases lubrication of hot metal, compared to other synthetics* High natural viscosity index (VI) provides thicker oil film in bearings and cams* Less evaporation than other synthetics for improved efficiency and ring seal* Blended with polyol ester base stocks that feature natural multi-grade properties, avoiding unnecessary additives that hinder lubricity* All products are completely compatible with other conventional and synthetic motor oils