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 ...

FLEET OWNER learned today that on December 4th, the ASTM Heavy Duty Engine Oil Classification Panel met and unanimously voted in the tests and limits needed to establish the new API CI-4 oil-service ...

Two new engine oil blends in development for over five years have been officially released on the trucking market: CK-4 and FA-4. The oils are the offspring of the Proposed Category 11, or PC-11, ...

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 ...

HOUSTON, Tex. – The American Petroleum Institute recently established new performance standards for its CI-4 category, requiring qualifying oils to handle soot better and improve shear control, in ...

If you've ever bought a quart of motor oil for your vehicle, you've likely encountered the letters API somewhere on the label. In fairness, there are a lot of abbreviations, symbols and odd number ...

For any vehicle, the most important factor in prolonging its usability and preserving its performance is regular maintenance ...

HOUSTON, Tex. – The American Petroleum Institute recently established new performance standards for its CI-4 category, requiring qualifying oils to handle soot better and improve shear control, in ...