Fuel consumption is lower when driving in...
A)high gears with the engine at high revs.
B)low gears with the engine at high revs.
C)high gears with the engine at low revs.Correct
Driving with low engine revs reduces fuel consumption. Therefore, we should try to drive in the highest gear that traffic conditions allow. When driving in low gears with the engine at high revs, we will get more power from the engine but fuel consumption will increase.