CORRELATION BETWEEN LABORATORY AND ENGINE PERFORMANCE OF SYNTHETIC TURBINE LUBRICANTS

Correlation between laboratory and engine test results is discussed for seven (7) MIL-L-7808 type synthetic gas turbine oils, of varying engine performance. Improved correlation of these test results is needed to guide researchers in development of new and improved oils and because of the high cost and time of engine testing. Many present laboratory tests fall in the “go-no go” category or are meaningless in regards to predicting engine performance. Generally, best correlation is obtained where tests are conducted under simulated engine operating conditions.