Technician A says that 2-D fuel provides the most power and best fuel economy for an on-highway diesel engine. Technician B says that 1-D is the best fuel for producing power and good fuel economy. Who is correct?

Question

Quizplus · Accepted Answer

2-D fuel is a type of diesel fuel that has been treated with a hydrogenation process. This process removes the sulfur and other impurities from the fuel, which results in a cleaner burn and improved fuel economy. 1-D fuel is a type of diesel fuel that has not been treated with a hydrogenation process. It is less refined than 2-D fuel and contains more sulfur and other impurities. As a result, 1-D fuel produces more emissions and has worse fuel economy than 2-D fuel.

Technician a Says That 2-D Fuel Provides the Most Power