No it does not
This is debated a lot.
Because it is an extra load on the alternator, many agree it does use extra gas, approximately eight tenths of a gallon a year.
No
No
To get rid of gas you just have to burn it. The car would explode if you burn the gas out of the well of my car
no, it just uses your car battery
No. A car heater gets its heat from the motor and uses no extra gas at all, unlike a car's air conditioner which does use more gas.
A gas that is in the air. It is used in some car headlights.
depends on the car
Yes, directly proporiate to weight. A 2500lb car will consume half the fuel of a 5,000lb car
You will get a little more power out of your engine, cleaner burn, more efficient operation, and quite possibly more miles to the gallon.
A little, the ac pump will put a draw on the engine more than without the ac on.
The voltage is lacking when you are not pressing on the gas... while pressing on the gas.. you are giving the headlights more electricity...
If your car is running when parked then it is burning gas. Cars use gasoline to run the engine.