Description Product DescriptionHarvest King All Fleet SAE 10W-30 HD Engine Oil is a premium heavy duty motor oil designed for mixed fleets operating in both on-highway and off-highway conditions. It offers exceptional protection for modern high-speed, low-emission, four-stroke diesel engines, as well as gasoline and diesel passenger vehicles. Formulated with excellent soot-handling capability, long-term wear protection, and outstanding oxidation stability, it meets or exceeds the latest API classifications and helps protect emission control systems while ensuring reliable cold starts.Product OverviewPremium heavy duty oil for mixed fleet useProtects emission control systemsOutstanding oxidation stabilityExcellent low temperature propertiesSpeeds cold startsSize: 5 Gallons (18.9 L)