You may reduce your vehicle’s fuel consumption by:

1. Correct answer: Driving calmly within the speed limit and making sure that the tire pressure is correct.
2. Driving calmly within speed limit, using the lowest gear.
3. Driving as slow as possible and reducing the vehicle’s excess weight.
4. Driving as fast as possible and reducing the vehicle’s excess weight.

WhyFuel consumption is reduced by calm driving within the speed limit and the correct tire pressure.