Rotella 4-Cycle oil provides quality lubrication and consistent performance with well-proven additives to fight engine corrosion and wear.Rotella T with Triple Protection technology, a new and improved formulation designed to meet the new API CJ-4 service category for heavy-duty diesel engine oils. Provides significantly lower wear, exceptional deposit control and engine cleanliness for both pre-2007 engines and the latest performance and emissions systems technology found on new engines.Key FeaturesMeets API CJ-4 service category for heavy-duty diesel engine oilsExceptional deposit control for pre-2007 and the latest performance and emissions systems technology found on new engines15W-40 viscosityGallon