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, ...

January 1, 2027, will be the first license date for two new heavy-duty engine oil categories, if all goes as planned.

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

Preparing for EPA 2027? API’s new PC-12 spec (CL-4 and FB-4) introduces ultra-low viscosity 0W-20 oils and stricter emissions ...

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 ...

The Engine Manufacturers Association (EMA) made a request earlier this year to the Diesel Engine Oil Advisory Panel (DEOAP) of the American Petroleum Institute (API) to initiate development of a new ...

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 ...