The value of using the correct lubricant is immeasurable. This article highlights some of the changes that are taking place in the medium and heavy duty category.
“Earlier this year, the American Petroleum Institute approved the two new diesel engine oil standards, API CK-4 and FA-4. They will first appear in the API Service Symbol “Donut” on Dec 1. The new oil categories were the results of a years-long process to develop new standards and tests, a process during which the new oils were known as PC-11.
It’s really the first time we’ve had two different oil categories. That’s because FA-4 was designed for use in new 2017-model engines that are required to get better fuel economy for lower greenhouse gas emissions.”
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