It’s show time at last for the producers of motor oils developed through the API Proposed Category 11 process. PC-11 was launched in 2011 to develop specs for a new oil-service category to succeed the ...

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 ...

Three years from now, you'll see a new API diesel engine oil-service category, designed to help meet federal greenhouse gas/fuel economy standards, which have a final phase-in date set for model year ...

A new generation of heavy-duty diesel engine oil is headed our way in the next 12 to 18 months. Known currently as PC-12, or ...

Diesel engine makers and truck OEMs will, within a few short years, expect motor oil to contribute to the mandated greenhouse-gas emissions (GHG) reduction and corresponding increase in miles per ...

U.S. crude oil futures were little changed from post-settlement levels Tuesday after the American Petroleum Institute reported a fall in domestic crude inventories.

For any vehicle, the most important factor in prolonging its usability and preserving its performance is regular maintenance ...

If you've ever bought a quart of motor oil for your vehicle, you've likely encountered the letters API somewhere on the label. In fairness, there are a lot of abbreviations, symbols and odd number ...

The American Petroleum Institute said on Tuesday it opposes legislation to expand year-round sales of E15 gasoline, a ...