The most current API SN oil category for gasoline engine oils are soon to be superseded by new gasoline engine oil standard aimed at providing greater protection and fuel efficiency for today’s ...

Last year after working with auto manufacturers and others, API announced the approval of improved performance standards for engine oils which will provide greater protection and fuel efficiency for ...

It’s an advanced, next-generation engine oil standard focusing on ultra-low viscosity oils for modern engines. When purchasing oil, look for the API Service Symbol "Donut" on the label, which is an ...

When you change oil in your gasoline-powered pickup truck or vehicle, do you take a second to look at the API (American Petroleum Institute) symbol on the container to make sure you’re using the ...

And some time has passed since the last diesel engine oil category was introduced in 2017 when the American Petroleum Institute (API) announced CK-4 and FA-4. These updated oil standards were, at the ...

Engine oil is the lifeblood of an engine, directly influencing its longevity, efficiency, and performance. Yet many drivers remain unsure about what those numbers and letters—like 0W-20 or API ...

The American Petroleum Institute (API), International Standards Organization (ISO), and Institute of Petroleum (IP) are taking steps to "harmonize" petroleum measurement standards. The three ...