Which rev counter band should be used for maximum fuel economy?

Which rev counter band should be used for maximum fuel economy?

• A. Green
• B. Amber
• C. Blue
• D. Red

Answer: (A)

Max fuel economy is achieved when the engine runs in its most efficient speed range, where it can produce the needed torque without using extra fuel. The green band on the rev counter marks that economical operating area. In this zone the engine works efficiently for the load you're pulling, so you get the best miles per gallon. If you climb into amber or red, revs are higher and fuel use climbs, with red also risking over-revving and engine wear. The blue band isn’t the economy range. So, staying in the green band is how you maximise fuel efficiency.

Max fuel economy is achieved when the engine runs in its most efficient speed range, where it can produce the needed torque without using extra fuel. The green band on the rev counter marks that economical operating area. In this zone the engine works efficiently for the load you're pulling, so you get the best miles per gallon. If you climb into amber or red, revs are higher and fuel use climbs, with red also risking over-revving and engine wear. The blue band isn’t the economy range. So, staying in the green band is how you maximise fuel efficiency.