While the popular oils described above are relatively common for gas engines, 15W-40 is a very popular type of oil for diesel vehicles. If you drive a diesel car or truck, there's a good chance ...

For this diesel oil ranking, we'll be comparing gallon-size bottles of 15w-40, as that's been the standard for a while. It's important to verify the right weight for a vehicle, and that ...

AMSOIL has introduced a new Premium API CJ-4 Synthetic 15W-40 diesel oil. The new oil is an upgrade to the company's most popular 15W-40 viscosity, now re-formulated for the 2007 CJ-4 ...

Not to be confused with standard conventional and synthetic engine oil, diesel engine oil features a higher parts-per-million measurement of additives to help prevent sludge buildup. Because of ...

A low number means low viscosity: the oil is thinner. Our 15W-40 diesel oil will not flow as easily in cold conditions as, for instance, 10W-40 oil. However, their viscosity will be the same in ...

The diesel engine oil available for your fleet is about to ... “Over the past several years, we have witnessed a transition from 15W-40 toward 10W-30 oils for increased fuel efficiency.

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

Also, since diesel oil changes are typically more expensive ... and this oil can offer improved fuel economy of 2.8 percent when compared to 15W-40 oils. The new Rotella T6 Multi-Vehicle 5W ...

While diesel engines have very large capacity ... As far as the type of oil used, most still run conventional 15W-40 weight oil. 7.3L Power Stroke:5,000 miles normal, 3,000 miles severe 6.0L ...