Changing the oil in your car is something that any DIYer can do. Although changing the oil might appear rather “duh,” there ...

Cummins is a household name in the heavy-duty segments. The Ram Heavy Duty pickup is a good example. In a surprising twist, ...

In the past, there have been similar shifts in preferred engine oil viscosity grades. An example is the transition in heavy duty diesel engine oils in the 1980s from monograde viscosity SAE 30 and ...