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The new heavy-duty engine oil category, PC-12, is nearing the finish line. Here’s what fleet maintenance managers should know before it arrives in 2027.
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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.
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The American Petroleum Institute is ramping up efforts to educate diesel engine users about the two new diesel engine oil standards it approved earlier this year, API CK-4 and FA-4.
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The American Petroleum Institute is introducing a special Service Symbol Donut designed to help buyers differentiate between the new API FA-4 and CK-4 service categories for diesel-engine oils.
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