Can you save fuel by pressing the clutch while running in fitth gear of four wheeler?

Answer 1

You can save fuel because the engine then goes back to idle. But by disconnecting the engine from the wheels (freewheeling) you don't have so much control over your car. You can also save fuel by turning off the engine and freewheeling down a hill, but if you have power brakes they won't have any power. Could be a problem.