With the accelerator pressed to the floor, is the same amount of fuel used no matter which gear you are in?

Answer 1

no not on modern electronically managed engines

Answer 2

No.

The amount of fuel is dependent on the rate of air flow through the engine (in a petrol engine anyway), so that is dependent on the load placed on the engine, the engine speed (not the car's speed), any ram-air effect from the car's speed, the wind direction and the ambient air pressure and temperature, as well as the throttle position (which is controlled by the accelerator pedal).

In an older diesel engine with no electronics controlling the fuel, the pedal position and the engine speed are the only things that control the fuel flow, so with the pedal pressed to the floor the fuel use (per minute, not per mile) will be the same at any given engine speed, independent of which gear you are in.

Answer 3

NO the amount of fuel used is a function of the speed the engine is turning over so the lower the gear the faster the engine is turning over & therefore more fuel will be used

Answer 4

The amount of fuel you burn depends on you RPM at the moment, not at the gear you are in. Transmission is invented to lower rpm while still produce the amount of horse power you need to go faster.

So once again it's RPM, not gear, not speed.

Answer 5

High gear - 1 gramme of fuel per cycle@2000 RPM = 1kg of fuel per minute (heck of a big motor that ).
Low gear - 1 gramme of fuel per cycle @ 4000RPM = 2kg of fuel per minute.

Answer 6

You will use less fuel if you keep to a steady speed .I have an automatic .and the faster you go the more fuel you use.

Answer 7

nah the higher the gear the less fuel it uses.

Answer 8

more power demand,more fuel demand,but depends on how the fuel injection system is calibrated,

Answer 9

I think so. It would explain why city mileage is so much different than highway mileage.

Answer 10

No because wind drag & moving mass.