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Phillips 66 and Kendall have added four new FA-4 and CK-4 spec low-viscosity diesel engine oils to its heavy-duty product portfolio.
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ExxonMobil has introduced a new lineup of Mobil Delvac 1 synthetic heavy-duty diesel engine oils, that includes three products that meet either API CK-4 or FA-4 specifications.
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You can spend a lot of time choosing the right oil, only to lose out on the benefits by not policing what actually goes into your tanks and trucks.
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The newest API oil-service category promises to boost mpg, but its use is limited to new engines.
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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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With engine oils meeting new CK-4 and FA-4 category specs on the market, fleets need to know how best to make use of them.
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