If you have a vehicle with a diesel engine, it's good to know that the engine can derate itself, depending on various factors ...

Semi trucks need a lot of power to carry their cargo on the road. That's why it can be a huge problem for the driver if it ends up derating.

Add Yahoo as a preferred source to see more of our stories on Google. When a semi truck's diesel engine derates, it typically means the electronic control unit (ECU) has detected faults and has ...