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 ...

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 ...

The formation of a new oil category (PC-11) is not something to be taken lightly. “For each of the additive suppliers or oil companies to finalize all of their formulations, the total cost of this ...

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 ...

Shell's Dan Arcy examining engine components following teardown testing conducted two years ago as part of the company's PC-11 development process. (Photo by Sean Kilcarr/Fleet Owner) Dan Arcy, the ...

This story appears in the July 25 & August 1 print edition of Transport Topics. WASHINGTON — Shell Rotella has unveiled its new lineup of lubricating oils, products designed to maintain the ...

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 ...

You may recall the article entitled "The Slippery Truth About Oil" from the June '06 issue of HPP (also available at www.highperformancepontiac.com). In it, we discussed the negative effects some ...