The diesel engine oil available for your fleet is about to undergo a major change. Two new oil categories, CK-4 and FA-4, have been announced by the American Petroleum Institute (API) and will replace ...

While “plus” often reflects marketing hype rather than any real extra capability, that is not the case for CI-4 PLUS. The latest engine oil classification enhancement from the American Petroleum ...

Shell's Dan Arcy examining engine components following teardown testing conducted two years ago as part of the company's PC-11 development process. (Photo by Sean Kilcarr/Fleet Owner) Dan Arcy, the ...

SAN RAMON, CA — Late last week the ASTM International’s Automotive Lubricants Subcommittee approved the new Proposed Category 11 (API CK-4 and API FA-4) specifications for the next generation of heavy ...

Demands on heavy-duty diesel engine oils have changed alongside engine technology and fuel formulations. “As engine technology and fuel technology have evolved, the environment in the crankcase has ...

SAN RAMON, Calif.--(BUSINESS WIRE)--Aug. 14, 2006--Owner operators and fleet maintenance managers are encouraged to sign up for Chevron's free API CJ-4 seminar at this year's Great American Trucking ...

Chevron Products Company announced that senior staff engineer Shawn Whitacre has been selected as the new chairman of the ASTM Heavy-Duty Engine Oil Classification Panel. Chevron Products Company ...

SAN RAMON, Calif.--(BUSINESS WIRE)--Chevron Products Company, a Chevron U.S.A. Inc. division, today announced that Senior Staff Engineer Shawn Whitacre has been selected as the new chairman of the ...