The authors provide evidence indicating that oils meeting only the minimum requirements of API GL-5 do not always provide adequate gear protection, especially in severe duty applications. Increases in commercial vehicle power and loading have accentuated the need for oils of greater load carrying ability. A modified version of the standard L-37 test may help identify oils that possess superior durability and thermal characteristics. Future gear lubricants should provide improved fuel economy, increased manual transmission life; and frictional characteristics that allow noise free performance in limited slip differentials.
Impact of Vehicle Changes Upon Gear Lubricant Requirements
Sae Technical Papers
1983 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1983
1983-10-31
Conference paper
English
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