Trends in Lubrication of Heavy-Duty Off-Highway Equipment

Lubricant quality impacts performance and durability of heavy-duty off-highway equipment. Accordingly, equipment manufacturers work cooperatively with the petroleum and additive industries to develop performance specifications for lubricants, and utilize these specifications in making recommendations for the end user. Currently, two new industry classifications are being developed in the U.S.A., one for diesel engine oils and the other for multipurpose power transmission fluids. This paper discusses these two proposed classifications and other lubrication trends.