An example is the transition in heavy duty diesel engine oils in the 1980s from ... flow characteristics over those in the SAE 15W-40 grade, is the oil’s ability to reach lubrication points ...

The second car that I ever owned was a 2002 Chevy Silverado 2500 with a 6.6L Duramax diesel engine under ... For example, a common oil rating is 15W-40, with 15 representing the oil's dynamic ...

Engine oil needs to form a protective film ... Key Considerations for Shifting to a Lower Viscosity Oil For off-road diesel equipment, 15W-40 has been the predominant oil and likely will be ...

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.