Has your diesel truck suddenly lost power or feels like it won’t accelerate like it normally does? If so, your truck may have entered what’s known as derate mode.

Modern diesel trucks are cleaner and more efficient than ever before. But that cleaner performance doesn’t just happen inside the engine — it’s largely due to the exhaust aftertreatment system working behind the scenes, including the DPF (Diesel Particulate Filter) and DEF (Diesel Exhaust Fluid) systems.

Diesel engines are one of the most efficient ways of traveling long distances. They can even carry huge loads compared to other types of commonly used engines like gasoline or CNG based engines.

Changing your truck’s oil may not be particularly easy or fun, but it is still an important part of maintaining your vehicle’s engine. In fact, regular oil changes are one of the most important factors contributing to your truck’s operating efficiency.