AMSOIL SAE 15W-40 Heavy-Duty Diesel and Marine Oil Gallon

Premium diesel oil providing excellent performance in diesel engines where highly effective control of wear and deposits is vital. Built with heavy-duty dispersant/detergent additives with 12 TBN, Synthetic Heavy-Duty Diesel & Marine Oil neutralizes acids and controls soot thickening from EGR and blow-by to protect against corrosion, cylinder bore polishing (wear) and varnish/sludge deposits. It resists heat and breakdown and is formulated for extended drain intervals.

• Recommended for applications specifying API CI-4+ and prior specifications
• Controls soot and wear
• Reduces oil consumption and emissions
• Delivers maximum engine protection over extended drain intervals
• Provides outstanding protection and performance in temperature extremes
• Try Signature Series Max-Duty 15W-40 for a serious upgrade