Ford recommends Motorcraft 10W-30 Super Duty diesel motor oil. If the ambient temperature reaches -22.0°F or below, Ford recommends Motorcraft 0W-40 diesel oil. For severe duty uses, the best oil ...

Let’s explain all of those confusing numbers, letters and terms to help you choose the right oil for your car.

Most are transitioning to SAE 10w-30, but depending on equipment builder ... Viscosity is only one aspect of a heavy duty diesel engine oil. There is a complex mixture of various performance ...

Demands on heavy-duty diesel engine oils have changed alongside ... are required in formulating lower viscosity heavy-duty engine oil grades such as 10W-30, 5W-40, 5W-30 and 0W-40; hold potential ...