Putting a Failed Engine Test Under the Microscope

Putting a Failed Engine Test Under the Microscope

API CK-4 has been in the market since December of 2016 and has replaced a large portion of the heavy-duty engine oil (HDEO) market, which had been ruled by API CJ-4. There were several changes to the performance requirements of CK-4 vs. CJ-4. In addition to tightened limits on some bench tests, such as volatility … Read more

The post Putting a Failed Engine Test Under the Microscope appeared first on National Oil & Lube News.

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