API PC-12 engine oil categories CL-4 and FB-4 are advancing toward a 2027 launch. Here’s what the changes mean for fleets, ...
This month, ExxonMobil will announce two motor oils formulated to meet the latest American Petroleum Institute (API) heavy-duty engine oil classification, CI-4, which was developed to ensure proper ...
When you look at a bottle of motor oil, you are assaulted by all the numbers and letters and whether or not it's synthetic. Without knowing what those figures signify, it can look almost random when ...
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