Ultra1Plus SAE 15W-40 Heavy-Duty Motor Oil, API CI-4/SL | 5 Gallon Pail

Cleans and extends engine life. Provides fluidity during cold starts. Reduces engine wear and excessive oil and fuel consumption. High resistance to oxidation allows longer cycle between oil change. Reduces the accumulation of sludge and the formation of deposits generated at high temperatures. Adequate alkaline reserve level to neutralize the acids produced from the diesel combustion with high sulfur content.