Question 4915
Fuel consumption is lower when driving in...
- higher gears with the engine at high RPM.
- lower gears with the engine at high RPM.
- higher gears with the engine at low RPM.
Show answer and explanation
Correct answer: higher gears with the engine at low RPM.
You use less fuel by driving in the highest gear your speed allows, keeping engine speed low without straining the engine. Higher engine speeds mean more fuel consumption, in both low and high gears.