The American Petroleum Institute invoked provisional licensing this month for most active North American industry heavy-duty diesel engine oil specifi ...

Protecting the internal components of heavy-duty engines is about more than efficiency. High-quality engine oil is the lifeblood of the machine and wi ...

The American Petroleum Institute announced the start yesterday of the 2021 cycle of its Aftermarket Audit Program, saying that it aims to once again t ...

The heavy-duty diesel engine oil market is gradually shifting to lower-viscosity products, with advancing technology and better understanding of their ...

General Motors’ proprietary tests required for its Dexos1 Gen 3 passenger car engine oil licensing will be available beginning Sept. 1, said GM Engi ...

Steve Swedberg discusses why the API CH-4 heavy-duty engine oil service category may soon be phased out.

Steve Swedberg makes an argument for more widespread adoption of API FA-4 engine oils.

Pressure is building for the heavy-duty engine oil market to begin shifting to lower viscosity grades, but lighter oils might not provide adequate pro ...

The next heavy-duty engine oil category in North America is not expected for seven years, and industry insiders worry that test hardware for existing ...

Maintaining older categories when the industry is at risk of not having the necessary engine tests to keep them alive is one key challenge to future h ...

ILSAC GF-6 will be four years late by the time it comes to market next May, but it will take little time for the industry to embrace the passenger car ...

Although managers of heavy-duty truck fleets understand the fuel economy benefits of API FA-4 engine oils, many remain hesitant to use a lower-viscosi ...

With stricter emissions regulations looming, the industry is already catching a glimpse of PC-12.

The American Petroleum Institute announced on May 15 that the Caterpillar Oil Aeration Test, or COAT, was again available for candidate oil testing an ...