About how much more fuel will be consumed if one more person sits in the car?

The increase in fuel consumption is about 5% to 10%.

Introduction to fuel consumption:

Fuel consumption refers to the amount of fuel consumed by a car traveling 100km. The economic index of a car is mainly represented by fuel consumption, which is an important performance in the performance of the car.

It includes waiting speed fuel consumption and cycle fuel consumption. Waiting speed fuel consumption refers to the fuel economy index when the car is driving at a constant speed on a good road surface.

Road cycle fuel consumption is a fuel economy index measured when a car is driven repeatedly on the road according to the prescribed speed and time specifications. It is also called multi-working mode road cycle fuel consumption.

The increase in fuel consumption is mostly related to the car owner’s use of the car. Generally there are the following reasons:

1. Insufficient tire pressure. If you find that the sliding distance of the car has shortened while driving, you need to check the tire pressure. If the tire is under-inflated, the fuel consumption will increase. Increase.

2. Tire wear. If the tires are severely worn, they will often slip and increase fuel consumption.

3. Bearing and brake failure. If the bearing and brake system fails and the wheels rotate abnormally, it will affect the vehicle speed and increase fuel consumption.

4. The temperature control switch and thermostat are damaged. Damage to the temperature control switch and thermostat will cause the water temperature to drop or rise, causing the computer of the EFI vehicle to give incorrect ignition and fuel injection signals. , poor atomization of gasoline and increased fuel consumption.