Shell Rotella T6 5W-40 Full Synthetic Heavy Duty Diesel Engine Oil, 1 Quart

Provides up to 34% better wear performance than conventional API CI-4 diesel engine oils. Synthetic base maintains exceptionally uniform flow characteristics for reduced friction and improved fuel efficiency at all operating temperatures. Low-viscosity technology ensures easier starts, extending the life of your starter and battery at the coldest temperatures. Advanced multi-function, low-ash additive formulation reduces ash and sulfur emissions to help maintain the efficiency of the latest engine management systems.