SAN RAMON, CA — Late last week the ASTM International’s Automotive Lubricants Subcommittee approved the new Proposed Category 11 (API CK-4 and API FA-4) specifications for the next generation of heavy ...

While “plus” often reflects marketing hype rather than any real extra capability, that is not the case for CI-4 PLUS. The latest engine oil classification enhancement from the American Petroleum ...

Demands on heavy-duty diesel engine oils have changed alongside engine technology and fuel formulations. “As engine technology and fuel technology have evolved, the environment in the crankcase has ...

SAN RAMON, Calif.--(BUSINESS WIRE)--Chevron Products Company, a Chevron U.S.A. Inc. division, today announced that Senior Staff Engineer Shawn Whitacre has been selected as the new chairman of the ...

No matter whether you run car, motorcycle, boat, or airplane, one common fact binding all these vehicles is that their engines all need oil. An internal combustion engine running at speed is a violent ...

The primary purpose of engine oil is to stop metal from touching metal. When metal surfaces come in contact, they grind together causing friction. That creates heat, stress and wear. Engine oil is ...

We earn commissions from purchases you make using links in our articles. Learn more. Save time and money by changing your own oil. See the best conventional motor oils here. Shopping for engine oil ...

We may receive a commission on purchases made from links. If your vehicle is due for an oil change, the oil of choice is either synthetic or conventional motor oil. But if your car's odometer is over ...