Royal Purple Duralec Super Synthetic Diesel Motor Oil 15W-40 — 1-Gallon Jug, Single or Case of 3

Choose one 1-gallon jug or a full case of 3 jugs. The case contains 3 US gallons.

Heavy-duty synthetic engine oil for diesel service, formulated for wear protection and engine cleanliness. Designed for use with modern diesel emissions systems where the specified oil is required.

• Brand: Royal Purple
• Product type: Diesel Motor Oil
• Viscosity: 15W-40

Confirm the required viscosity and API CK-4 compatibility in your engine manual.

Photo shows one container. The quantity supplied is the pack size stated above or selected.