Royal Purple Duralec Super Synthetic Diesel Motor Oil 15W-40 — 6-Gallon EcoBox

Includes one 6-gallon ecobox (24 US quarts total).

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.

U.S. standard shipping: $35 for this bulk shipping group. Mixed shipping groups may combine at checkout.