The transition to CL-4 oils is expected to be backward-compatible, but FB-4 use may depend on OEM approvals for specific ...
The new API FA-4 oil-service category was developed specifically to work in concert with the new generation of more fuel-efficient heavy-duty diesels starting to come on the market. Photo: Shell Oil ...
It’s an advanced, next-generation engine oil standard focusing on ultra-low viscosity oils for modern engines. When purchasing oil, look for the API Service Symbol "Donut" on the label, which is an ...
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