
Take a closer look at the benefits of API FA-4 engine oils and bust some of the misconceptions.
Take a closer look at the benefits of API FA-4 engine oils and bust some of the misconceptions.
FA-4 motor oils may be the best thing ever to happen to diesel engines, but not all fleets are yet reaping the benefits.
The American Petroleum Institute's new diesel engine oil-service categories, API CK-4 and FA-4, will begin appearing in the marketplace on Dec. 1.
New motor oils are coming to truck engines and lubricant marketers near you this December; here's what you need to know.