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, ...

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

The American Petroleum Institute (API) announced progress in the development of its new Proposed Category 12 (PC-12) heavy-duty engine oil specification, clearing several key steps toward formal ...

Shell Rotella’s new Knowledge Hub helps fleets understand and prepare for the upcoming API PC-12 oil standards. PC-12 engine oils will improve durability, efficiency, and emissions performance for ...