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) ...

When it comes to your heavy-duty fleet, you know the importance of servicing each truck to keep them running smoothly and efficiently. You know that engine oil and grease play a crucial role in ...

New EPA 2027 emissions rules also mean new diesel engine oil specs. A new generation of heavy-duty engine oils will feature lower viscosity, improved thermal resistance, and possibly longer oil drain ...