A number of multigrade diesel engine oils meeting API Service Classification CD, including those of Super Tractor Oil Universal (STUO) type, were tested in a standard multicylinder diesel test engine. The range in performance of these commercial oils in regard to piston deposits, wear, oil deterioration, and oil consumption was wide, but similar to that of SAE 30 oils of the same Service Classification. The wide variability in oil performance indicates engine oil test criteria of API Service Classification CD do not adequately address the concerns of diesel engine manufacturers. A new performance classification above and beyond API Service Classification CD is needed.
Performance of Multigrade Oils in Off-Highway Diesel Engines
Sae Technical Papers
1980 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1980
1980-10-01
Conference paper
English
Performance of Multigrade oils in off-highway diesel engines
Tema Archive | 1980
|Performance of multigrade oils in off-highway Diesel engines
Automotive engineering
|Multigrade oils for Diesel engines
TIBKAT | 1980
|Performance of Multigrade Oils in Heavy-Duty Diesel and Gasoline Engines
SAE Technical Papers | 1967
|SAE Technical Papers | 1955
|