Do it Heavy-Duty Motor Oil is a premium detergent motor oil designed for heavy-duty use in passenger cars, commercial vehicles, and farm equipment where single viscosity oil is suitable or required. This motor oil helps reduce wear and corrosion, ensuring your engine stays protected while also helping to keep oil consumption low. Packaged in a convenient quart bottle, it is compatible with both gasoline and diesel engines and meets SAE Grade HD30W standards with classifications SJ, SL, and SH. This motor oil provides reliable performance and durability for your vehicle’s engine needs. Model Number: 579343