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Lubricants: A New Dawn Thinkstock

Lubricants: A New Dawn

CK-4 and FA-4 make their debut in December. How will they alter your diesel engine oil decisions?

In a little less than a month, two new engine oil blends in development for over five years will be officially released on the trucking market: CK-4 and FA-4. The oils are the offspring of the Proposed Category 11, or PC-11, engine oil classification, which gained final approval from the American Petroleum Institute (API) in January.

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