Delo 400 XSP SAE 15W-40 (Full Synthetic) with ISOSYN Advanced Technology is a mixed-fleet engine oil recommended for naturally aspirated and turbocharged four-stroke diesel engines and four-stroke ...

The best synthetic oils offer ... to get out of the way. Whatever oil viscosity your car runs, stick with it. If your owner’s manual says 5W30, or 15W40, or 10W60 as an oil viscosity grade ...

Lastly, 6.7 Power Strokes frequently burning B20 biodiesel fuel require either Motorcraft SAE 5W-40 full synthetic diesel ...

In the United States heavy duty trucking lubricants market, the drive for energy efficiency is influencing a transition from SAE 15w-40 diesel ... a heavy duty diesel engine oil.