Consumption Measurement Using the
Inclusive Dates: 04/23/99 - 03/20/00
Background - The purpose of this quick-look project was to evaluate the practicality of two different methods using metal contained in the engine oil additive package to serve as a tracer for engine oil consumption.
Approach - Using the accurate and precise SO2-tracer technique, research staff measured oil consumption on a 1.9-liter, direct injected-diesel engine. Analyzing particulate filters and lubricant samples obtained from the same engine, research personnel evaluated the suitability of applying the alternative metal-tracer technique.
Accomplishments - This study determined that the filter media is extremely important in any successful application of the metal-tracer technique. Finally, oil samples should be analyzed by the ICP method, which provides excellent accuracy and repeatability.