It’s an advanced, next-generation engine oil standard focusing on ultra-low viscosity oils for modern engines. When purchasing oil, look for the API Service Symbol "Donut" on the label, which is an ...

Thanks to the millions of dollars and untold hours of effort on the part of an entire industry poured into creating oil-service category CJ-4 so that diesel engine oil can protect both 2007 and 2010 ...

About a year ago, the American Petroleum Institute formed a team to develop a new API oil-service category, to replace the current CJ-4. And for the first time, there will be two standards, one for ...

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 ...

Two new engine oil blends in development for more than 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, ...

Licensing and distribution begins in December for two new heavy-duty diesel engine oils, giving fleet and maintenance personnel less than three months to decide how each fits into their operation.