The World's First Diesel Engine Oil Category for Use With Low-Sulfur Fuel: API CG-4 941939
Since diesel engine oils are part of the low-emission equation, there has been stepped increases in the quality of crankcase oils with the stepped reduction in diesel exhaust emissions. The new API CG-4 oil category, was developed to address the Engine Manufacturers Association's (EMA's) needs for 1994 emission-controlled diesel engines. It also improves the quality of crankcase oils by using modern four-cycle diesel engine tests which:
operate on low-sulfur diesel fuel, as used by all on-highway trucks in the U.S.,
have statistically defined test limits,
are incorporated into the Chemical Manufacturers Association's (CMA's) rigorous code for qualification testing.
Citation: McGeehan, J., Franklin, T., Bondarowicz, F., Bowen, T. et al., "The World's First Diesel Engine Oil Category for Use With Low-Sulfur Fuel: API CG-4," SAE Technical Paper 941939, 1994, https://doi.org/10.4271/941939. Download Citation
J. A. McGeehan, T. M. Franklin, F. Bondarowicz, T. Bowen, W. Cave, C. Cusano, G. Farnsworth, M. J. Quinn, R. L. Juett, D. Larkin, R. Lee, J. R. Lohuis, D. Marn, N. Nann, B. Olree, C. Passut, G. Shank, J. Zalar