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Does Driving With The AC On Actually Use More Fuel? - Car Talk - Nairaland

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Does Driving With The AC On Actually Use More Fuel? by khalhokage(m): 8:17am On Apr 30, 2016
Air-Conditioner Operation
When you turn the AC on in your car, it uses energy supplied to it by the alternator. This energy is coming from the engine, which is using the fuel in your gas tank. The AC won’t run properly without the car started because the belt that engages the compressor (which is used to compress the coolant and make it cold) will only run with the engine started. This is the same belt that is responsible for running the alternator and charging your battery.

Which Is More Efficient?
Testing the effect of both methods (windows down, AC off versus windows up and AC on) has been done and debated by several different organizations. One of the leading groups, the Society of Automotive Engineers, conducted a number of tests on the effects of AC versus windows rolled down on automobiles.

The SAE found that running an air conditioner in an automobile decreased gas mileage by 5 to 10%. Stanford University and SAE both recommend driving with your car’s windows down if you are traveling on city streets.

However, when on a freeway or highway, the drag produced by your windows being rolled down exceeds the efficiency drop by keeping windows rolled up and AC on. Both organizations recommend that you use your car’s AC when driving at speeds above 45 MPH.

With that in mind, it’s probably best to do your driving in the early morning or later at night when possible. This is when the day is (usually) cooler. Driving with the A/C off and windows up is the most fuel efficient way to operate your automobile.

http://zidbits.com/2012/01/does-driving-with-the-ac-on-actually-use-more-fuel/

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Re: Does Driving With The AC On Actually Use More Fuel? by klassykute(m): 8:18am On Apr 30, 2016
see question oo ..bro does cooking beans with gas use more gas ?

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Re: Does Driving With The AC On Actually Use More Fuel? by khalhokage(m): 8:22am On Apr 30, 2016
klassykute:
see question oo ..bro does cooking beans with gas use more gas ?

Read the article 1st Bros, hustling for FTC is real.
Re: Does Driving With The AC On Actually Use More Fuel? by html14java(f): 8:39am On Apr 30, 2016
khalhokage:

Read the article 1st Bros, hustling for FTC is real.
In nl, we dont read to comment. We comment to read when it gets to FP.
Re: Does Driving With The AC On Actually Use More Fuel? by moscobabs(m): 8:49am On Apr 30, 2016
html14java:
In nl, we dont read to comment. We comment to read when it gets to FP.
but does that makes any sense to you?

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Re: Does Driving With The AC On Actually Use More Fuel? by cocoduck: 10:08am On Apr 30, 2016
When you switch on the AC, the car's idle sound changes, right? So now the car needs more energy to run, because it (the compressor) must pressurise the system, the energy to do that is gotten from the engine, which means more fuel, Energy cannot be created or destroyed but can only be converted from one form to the other. Simple Physics.
Re: Does Driving With The AC On Actually Use More Fuel? by klassykute(m): 11:56am On Apr 30, 2016
khalhokage:


Read the article 1st Bros, hustling for FTC is real.
read my comment bro .. even dis ur thread wont make fp ..... without dem no tell u . u nor knw say e dey waste fuel b4?
Re: Does Driving With The AC On Actually Use More Fuel? by Nobody: 1:13pm On Apr 30, 2016
Tests have been done which show it makes no difference.
Re: Does Driving With The AC On Actually Use More Fuel? by Nobody: 6:19pm On Apr 30, 2016
html14java:
In nl, we dont read to comment. We comment to read when it gets to FP.

Since the day I registered on Nairaland, I have never read a comment as senseless as this. Congratulations! angry

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Re: Does Driving With The AC On Actually Use More Fuel? by khalhokage(m): 9:10pm On Apr 30, 2016
MissMercedes:


Since the day I registered on Nairaland, I have never read a comment as senseless as this. Congratulations! angry

It's not senseless, you just don't understand it.
Re: Does Driving With The AC On Actually Use More Fuel? by html14java(f): 9:46pm On Apr 30, 2016
MissMercedes:


Since the day I registered on Nairaland, I have never read a comment as senseless as this. Congratulations! angry

Dafts make this kind of your comment.

Nairaland Minister of sense? Am sure yours is negatively far from common.

What do u say you name is?
Re: Does Driving With The AC On Actually Use More Fuel? by html14java(f): 9:51pm On Apr 30, 2016
moscobabs:

but does that makes any sense to you?

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