The American Petroleum Institute will introduce a special Service Symbol Donut to help consumers identify the newly-approved FA-4 (PC-11) diesel engine oil. API approved two new diesel oil standards, ...

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 ...

The API is aiming for a 2027 rollout of the new engine oil spec, which is meant to enhance performance standards.

API PC-12 engine oil categories CL-4 and FB-4 are advancing toward a 2027 launch. Here’s what the changes mean for fleets, ...

With the American Petroleum Institute's Lubricants Group approving the transition into the development phase of Proposed Category-12 (PC-12), the replacement process for engine oil categories CK-4 and ...

It’s too early in the game to officially say that the fuel efficiency promise of the newly rolled out API FA-4 oil-service category has been met. On the other hand, there is enough research already in ...

Chevron (Thailand) Limited, the marketer and manufacturer of quality lubricant products under Caltex Delo brand, launched the new “Caltex Delo® 400 SLK API CK-4” low-SAPs heavy duty diesel engine oil.

Diesel engines have been around for more than half a century. Chances are that if you are around fleets or equipment, you have encountered a diesel engine. They have been described as the workhorses ...