To achieve maximum fuel efficiency, after shifting into a higher gear, what is the optimal Engine RPM range to accelerate and shift again for each engine type?
A)Accelerate and shift between 2,000–2,500 RPM for gasoline engines, and between 1,500–2,000 RPM for diesel engines.Correct
B)Accelerate and shift between 1,000–1,200 RPM for gasoline engines, and between 2,500–3,000 RPM for diesel engines.
C)Accelerate heavily up to 3,500 RPM in both engines before shifting to ensure the car reaches highway speeds quickly.
DGT efficient driving matrices establish that diesel engines generate maximum torque earlier, meaning you should accelerate and shift earlier (between 1,500 and 2,000 RPM). Gasoline engines operate at slightly higher rev bands, making 2,000 to 2,500 RPM the target sweet spot to execute progressive acceleration without stressing the engine or over-consuming fuel.