ASTM's development of the sequence VI fuel efficient engine oil dynamometer test

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:5055965

Zahalka, T L; Heath, D H; Brown, J G; Farnsworth, G R; Patrick, R J

An ASTM task force has completed development of an engine dynamometer test for measuring the ability of engine oils to improve fuel economy in passenger cars and light-duty trucks. The test was designed to correlate with its predecessor 5-Car chassis dynamometer test. Initial development utilized a 2.3L four-cylinder engine. After several operating modes were evaluated, a steady-state, constant output test regime was adopted. Ultimately, a 3.8L V-6 engine was selected. The test incorporates engine calibration of both viscosity and friction modification responsiveness prior to each test. Blind reference oil evaluations further validate the test calibration. These features have enabled repeatability and reproducibility of this 65-hour test to equal that of the more expansive 5-Car method. Correlation with the 5-Car test is excellent. The test is considered useful for defining both EC and the tentative EC-1 performance categories of energy-conserving oils.

• OSTI ID: 5055965
• Report Number(s): CONF-871142-
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
AUTOMOBILES
DYNAMOMETERS
ENGINES
EXPERIMENT PLANNING
FUEL ECONOMY
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
LUBRICATION
MEASURING INSTRUMENTS
OILS
OPERATION
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PERFORMANCE
PETROLEUM PRODUCTS
PLANNING
SPARK IGNITION ENGINES
TESTING
TRUCKS
VEHICLES