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 ...

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.

The best engine oil for Maruti Ciaz is the shell HX5 15W-40 which is the fully synthetic if it is a petrol engines and for diesel engines Shell Helix HX-7 Synthetic 5W-40.