Engine oil is an absolutely crucial item for any car, regardless if it's diesel or gasoline. Is it normal for the oil in ...

Driving a car with a diesel engine instead of a gasoline one, particularly if you already have experience driving a gasoline engine, is all about memorizing (and occasionally breaking) habits.

High-mileage engines need more maintenance attention, but does that mean you should use thicker oil? Before adding any, ...

Castrol diesel oils extend drain intervals, validated by a used oil analysis program like Castrol Labcheck, improve fuel efficiency, can be used in diesel and natural gas-fueled engines ...

For instance, many diesel engines today still use a 40-weight oil (albeit multigrade or semi-synthetic) which can tell us about the changes in the viscosity requirements over the years.

but does that make a diesel engine oil (HD) a good choice for hot rods or race cars? To answer that question, we need to understand the other differences between diesel oils, passenger car oils ...

New EPA 2027 emissions rules also mean new diesel engine oil specs. A new generation of heavy-duty engine oils will feature lower viscosity, improved thermal resistance, and possibly longer oil ...

So, you may not be surprised to learn that a lot of common-sense car maintenance rules apply to diesel engines as well as gas. Oil changes, filter swaps, and tire rotations every few thousand ...

Regular oil maintenance could prevent possible further wear and tear. The payoff is significant money saved on repairing or even changing the motor. High-mileage engines have common problems like ...