US petroleum product demand plunged to its lowest first-half level in more than a decade as the sluggish economy continued to squeeze oil consumption, reported the American Petroleum Institute.

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 American Petroleum Institute (API), joined by farming and car dealership groups, filed Wednesday a lawsuit seeking the cancellation of new fuel economy and efficiency standards by the United ...

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 ...

The American Petroleum Institute (API) has asked the USA road regulator to cancel a planned gradual increase in fuel efficiency requirements, which the industry group says effectively bans liquid-fuel ...

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 ...

The lawsuit is the third the oil industry trade group has filed in recent weeks against the administration’s climate rules for vehicles. The American Petroleum Institute is challenging the Biden ...