Does running the air conditioner in your vehicle consume gasoline?

Yes, it uses more fuel to run the A/C. It takes quite a bit of energy to run the a/c compressor.

At more effective speeds, the substantial resistance that the ability of the engine has to conquer is wind resistance. Any time the A/C is on, power is had to teach over the compressor. the perfect gas economic gadget is with the residing house windows closed and the A/C off. depending the position you stay, this gained't be a sturdy decision. I actually have had the residing house windows tinted on the perfect 4 automobiles I actually have owned. fairly facilitates on the nice and cozy sunny days to ease using the A/C.

Although the AC does use some fuel, the difference at highway speeds is negligible for many modern cars when compared to driving with the windows rolled down. Driving with the windows rolled down increases parasitic drag and that often uses more fuel than the AC does, so many modern cars actually use LESS fuel with the windows up and the AC running.

Around town, parasitic drag at low speeds is negligible so driving with the AC on will consume slightly more fuel. Most modern cars will only see a reduction of 1 or 2 MPG in city traffic. Modern AC systems are much more energy efficient than systems were 20 or 30 years ago. A 2 or 3 MPG hit on a 60s or 70s vintage land yacht that got 8 to 10 MPG was huge. A 1 or 2 MPG hit on a modern car that gets 20 MPG is not nearly as big a hit financially.

A more important consideration is the impact on the driver especially when it's very hot and humid. Heat and humidity can take a significant toll on the driver. You tire more quickly, are more irritable, and less focused on the task at hand. The small amount of extra money spent to run the AC usually offsets the negative impact of driving when you are overheated and just feeling plain miserable as a result.

Your daughter, although probably beautiful and kind, is wrong. This is referred to as an engine's driveability. Factors that affect horsepower, by drawing from the engine cause the automobile to utilize less of the input energy into the wheels. The driver reacts by increasing fuel, which increases air, which increases combustion. With all this said, yes it burns more fuel.

If the alternative is to drive with the windows down, then it's more efficient to drive with the A/C on. You can get the full details by searching for Mythbusters Air Conditioner on youtube. or cut and paste this if it's not a link... http://www.youtube.com/watch?v=t7Je_995cdI

It acctualy uses a lot, depending on what car anywhere from 2-3 mpg... if it didnt consume energy then why does it in your house?

Yes.

Yes....a lot

Yes it does! Your daughter is an idiot!

It uses more of the engines power, therefore more gas. On old cars it was really bad, new cars maybe a 1 MPG difference.