Robert W Warden

Feasibility of Using Full Synthetic Low Viscosity Engine Oil at High Ambient Temperatures in Military Vehicles

Abstract : Advancements in lubricant technology over the last two decades, in particular, the availability of high quality synthetic base oils, has set the stage for the development of a new fuel efficient, multifunctional powertrain lubricant with extended drain capabilities. Given its large fleet size, diversity of equipment, and range of environments in which it must operate, the U.S. Army is perhaps uniquely positioned to benefit from these advancements. This report summarizes the initial work that the U.S. Armys Fuel and Lubricants Technology Team has been doing to establish the technical feasibility of developing a new multifunctional, fuel efficient powertrain lubricant for the Armys fleet of combat and tactical vehicles and equipment referred to as the Single Common Powertrain Lubricant (SCPL) project. The feasibility of using a low viscosity diesel engine oil in Army engines was determined. At desert like operating conditions, a prototype SCPL provided similar overall performance as an SAE15W.40 oil in 3 Army engines.