Mag 1 (61658-6PK 15W-40 CJ-4/SM All Fleet Engine Oil - 1 Quart, (Pack of 6)

All Mag 1 Fleet Engine Oils have a balanced durability, extended drain intervals and emission control. They are specially engineered for heavy duty diesel and gasoline engines operating under all service conditions.

• High detergency and superior dispersancy keep engines clean and soot suspended in the oil despite longer drain intervals and increased soot loading
• Exceptional resistance to thermal degradation, even under the most severe operating temperatures, prevents viscosity increase and the deposit formation and wear
• Superior anti-wear agents extend engine life despite high operating temperatures and extended service intervals
• Higher starting TBN provides added protection against acid build-up that can cause rust and corrosion
• Highly reliable performance over a wide range of temperatures, including severe cold