Effect of Various Lubricating Oils on Piston Deposits in Biodiesel Fueled Engines 2004-01-0098
Some customers of Transport Refrigeration Units (TRU's) powered by 2.1 liter diesel engines in Europe are requesting to run 100% biodiesel fuel in their TRU's.
The purpose of this paper was to find a way for users of 100% biodiesel fuel to maintain reliable diesel engine operation through selection of a better engine lubricant. Diesel engines that have been run with 100% biodiesel fuel have been found to have deposits inside the engine that are not found when running on fossil petroleum diesel fuel. This paper examines the effect of various engine-lubricating oils on engines running with 100% biodiesel fuel. The comparison of various engine oils was accomplished by evaluating the piston skirt and ring groove deposits when running 4 different engine oils for 1000 hours each on identical engines that are fueled by Soybean Biodiesel fuel.