A/C uses more gas but....
#1
A/C uses more gas but....
I have always wondered does the A/C on high use more gas than if it is set on the lowest setting? May be a dumb question but I still don't know the answer. I didn't know if the engine had to work harder to push the air or not if it's on high. People always say that the a/c uses more gas but I have never heard if there is a difference with the speed of the fan.
#3
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Its using more gas because it is working more to turn the compressor...all the compressor is doing when your NOT using your A/C is spinning. Once you turn on your A/C that pulley moves out just the slightest bit and takes away power from the engine...
More of a load on the engine, more gas being used....Think about driving on flat ground all day, compared to driving up a constant hill all day
-matt
More of a load on the engine, more gas being used....Think about driving on flat ground all day, compared to driving up a constant hill all day
-matt
#4
Originally Posted by matty
Its using more gas because it is working more to turn the compressor...all the compressor is doing when your NOT using your A/C is spinning. Once you turn on your A/C that pulley moves out just the slightest bit and takes away power from the engine...
More of a load on the engine, more gas being used....Think about driving on flat ground all day, compared to driving up a constant hill all day
-matt
More of a load on the engine, more gas being used....Think about driving on flat ground all day, compared to driving up a constant hill all day
-matt
#6
Once the a/c kicks on it is mechanical draw. If you have the a/c on and high, that is just a fan setting, so it is just more electrical draw in addition. Having it on "high" will not theoretically use "more" gas. So if you are hot, turn it up, also, recyc is your friend on real hot days.
#7
Originally Posted by maxgtr2000
Once the a/c kicks on it is mechanical draw. If you have the a/c on and high, that is just a fan setting, so it is just more electrical draw in addition. Having it on "high" will not theoretically use "more" gas. So if you are hot, turn it up, also, recyc is your friend on real hot days.
Now that you mention it, what is the difference b/n using recyc and not?
![got me](https://maxima.org/forums/images/smilies/ne_nau.gif)
#9
Originally Posted by us3rnotfound
Recycle recirculates the already cool air, making it cooler theoretically.
#10
Once the A/C is clicked on to any position it clicks on teh compressor, there the compressor sends teh freon around blah blah go read how it works, anyways, teh evaporator gets COLD and the air blows through it, now as you set each setting low or high all it does it change the fan speed.. Does not effect teh compressor..
So, in reality you are not wasting any more gas on 1 then you would on 4...
So, in reality you are not wasting any more gas on 1 then you would on 4...
#11
On Myth busters, they proved that it takes more gas to run the a.c. Under the same conditions( 5 gallons of gas, same load, 45 mph, 2 expeditions). the vehicle with the windows open went fifteen miles more than the one with the ac on.
#12
Originally Posted by s0ber
Once the A/C is clicked on to any position it clicks on teh compressor, there the compressor sends teh freon around blah blah go read how it works, anyways, teh evaporator gets COLD and the air blows through it, now as you set each setting low or high all it does it change the fan speed.. Does not effect teh compressor..
So, in reality you are not wasting any more gas on 1 then you would on 4...
So, in reality you are not wasting any more gas on 1 then you would on 4...
![doublethumbsup](https://maxima.org/forums/images/smilies/dblthumb2.gif)
![Nod](https://maxima.org/forums/images/smilies/nod.gif)
#13
Originally Posted by ay5800
On Myth busters, they proved that it takes more gas to run the a.c. Under the same conditions( 5 gallons of gas, same load, 45 mph, 2 expeditions). the vehicle with the windows open went fifteen miles more than the one with the ac on.
#14
Originally Posted by ay5800
On Myth busters, they proved that it takes more gas to run the a.c. Under the same conditions( 5 gallons of gas, same load, 45 mph, 2 expeditions). the vehicle with the windows open went fifteen miles more than the one with the ac on.
#15
Originally Posted by MDeezy
yea I saw that episode, I gotta watch it again but their first test was A/C winning over open windows, then they did the test different and windows open won (memory clouded).
#20
Originally Posted by vortechpower
READ YOUR OWNERS MANUAL! ANYTHING ABOVE 60 MPH AT STEADY SPEED IS GONNA BENEFIT FROM WINDOWS UP BECAUSE OF LESS DAG AND WILL GET BETTER FUEL ECONOMY WITH AC. ![Shift](https://maxima.org/forums/images/smilies/shift.gif)
![Shift](https://maxima.org/forums/images/smilies/shift.gif)
LAY OFF THE CAPS, TOO
#21
ok guys how come when i'm doing 75 mph on a flat highway surface set in cruise control in 5th gear i put my maxima ac on full a/c #4 and with recirc and the rpm doesnt go up? then how is it using more gas, its not that i don't believe you i just want an explanation for the fact that supposedly there is more load on the engine? However, at idle when i put the a/c on there is a very noticable diff in rpm level. also for you guys that defend the recirc button how come most car manuals, like an 01 sentra's or 98 a4's to be specific tell you to use recirc only to get the air coming through the vents to cool the air quicker and then turn it off they claim it uses more gas than non-recirc? I also saw myth busters and we have to realize that our cars are more aerodynamic than expeditions and the diff. at 45 mph maybe less significant (i mean there are a lot of variables to say the least).
#24
Originally Posted by nybali
ok guys how come when i'm doing 75 mph on a flat highway surface set in cruise control in 5th gear i put my maxima ac on full a/c #4 and with recirc and the rpm doesnt go up? then how is it using more gas, its not that i don't believe you i just want an explanation for the fact that supposedly there is more load on the engine? However, at idle when i put the a/c on there is a very noticable diff in rpm level. also for you guys that defend the recirc button how come most car manuals, like an 01 sentra's or 98 a4's to be specific tell you to use recirc only to get the air coming through the vents to cool the air quicker and then turn it off they claim it uses more gas than non-recirc? I also saw myth busters and we have to realize that our cars are more aerodynamic than expeditions and the diff. at 45 mph maybe less significant (i mean there are a lot of variables to say the least).
#25
Originally Posted by nosispower
It's not just theoretical, my car gets cool a lot quicker in recirc mode but it's not very healthy for you to breathe the same air over and over again.
![doublethumbsup](https://maxima.org/forums/images/smilies/dblthumb2.gif)
#26
Originally Posted by ay5800
On Myth busters, they proved that it takes more gas to run the a.c. Under the same conditions( 5 gallons of gas, same load, 45 mph, 2 expeditions). the vehicle with the windows open went fifteen miles more than the one with the ac on.
Anyway, It doesn't matter how much gas it uses, it's in the 90's here & not using the AC it crazy.
#28
Originally Posted by mikeh
Is there any way to lower the temp below 65 degrees on the climate controlled ac system... it is hot as hell in Louisiana
#29
Originally Posted by s0ber
Once the A/C is clicked on to any position it clicks on teh compressor, there the compressor sends teh freon around blah blah go read how it works, anyways, teh evaporator gets COLD and the air blows through it, now as you set each setting low or high all it does it change the fan speed.. Does not effect teh compressor..
So, in reality you are not wasting any more gas on 1 then you would on 4...
So, in reality you are not wasting any more gas on 1 then you would on 4...
#30
I agree compressor is eather on or off it doesnt work harder.
Originally Posted by kcryan
I concur
also to whoever said that recuriculate is your friend, but said that the compresser is working the same amount reguardless of setting , setting only affects the fan speed, your retarted
also to whoever said that recuriculate is your friend, but said that the compresser is working the same amount reguardless of setting , setting only affects the fan speed, your retarted
#31
Originally Posted by kcryan
I concur
also to whoever said that recuriculate is your friend, but said that the compresser is working the same amount reguardless of setting , setting only affects the fan speed, your retarted
also to whoever said that recuriculate is your friend, but said that the compresser is working the same amount reguardless of setting , setting only affects the fan speed, your retarted
![Gay](https://maxima.org/forums/images/smilies/gay.gif)
#32
Originally Posted by kcryan
Thanks, and just for future reference its spelled THE, and freon?? i think not, its R-134A
![Gay](https://maxima.org/forums/images/smilies/gay.gif)
Fre·on
trademark
a trademark for any of a number of chemical compounds containing fluorine, and often chlorine or bromine. Use: as solvents, as aerosol propellants, in refrigeration.
#33
R-134a DOES have flourine in it.
http://www.msc.navy.mil/n7/ein/038ein.htm
It does not contain Chlorine.
also... Here's another one for ya..
Fre·on
( P ) Pronunciation Key (fr![](http://cache.lexico.com/dictionary/graphics/AHD4/GIF/emacr.gif)
![](http://cache.lexico.com/dictionary/graphics/AHD4/GIF/prime.gif)
n
)
A trademark used for a variety of nonflammable gaseous or liquid fluorinated hydrocarbons employed primarily as working fluids in refrigeration and air conditioning and as aerosol propellants.
http://www.msc.navy.mil/n7/ein/038ein.htm
It does not contain Chlorine.
also... Here's another one for ya..
Fre·on
![](http://cache.lexico.com/dictionary/graphics/AHD4/JPG/****.jpg)
![](http://cache.lexico.com/dictionary/graphics/AHD4/GIF/emacr.gif)
![](http://cache.lexico.com/dictionary/graphics/AHD4/GIF/prime.gif)
![](http://cache.lexico.com/dictionary/graphics/AHD4/GIF/obreve.gif)
![](http://cache.lexico.com/dictionary/graphics/AHD4/GIF/lprime.gif)
A trademark used for a variety of nonflammable gaseous or liquid fluorinated hydrocarbons employed primarily as working fluids in refrigeration and air conditioning and as aerosol propellants.
#35
Originally Posted by s0ber
R-134a DOES have flourine in it.
http://www.msc.navy.mil/n7/ein/038ein.htm
It does not contain Chlorine.
also... Here's another one for ya..
Fre·on
( P ) Pronunciation Key (fr![](http://cache.lexico.com/dictionary/graphics/AHD4/GIF/emacr.gif)
![](http://cache.lexico.com/dictionary/graphics/AHD4/GIF/prime.gif)
n
)
A trademark used for a variety of nonflammable gaseous or liquid fluorinated hydrocarbons employed primarily as working fluids in refrigeration and air conditioning and as aerosol propellants.
http://www.msc.navy.mil/n7/ein/038ein.htm
It does not contain Chlorine.
also... Here's another one for ya..
Fre·on
![](http://cache.lexico.com/dictionary/graphics/AHD4/JPG/****.jpg)
![](http://cache.lexico.com/dictionary/graphics/AHD4/GIF/emacr.gif)
![](http://cache.lexico.com/dictionary/graphics/AHD4/GIF/prime.gif)
![](http://cache.lexico.com/dictionary/graphics/AHD4/GIF/obreve.gif)
![](http://cache.lexico.com/dictionary/graphics/AHD4/GIF/lprime.gif)
A trademark used for a variety of nonflammable gaseous or liquid fluorinated hydrocarbons employed primarily as working fluids in refrigeration and air conditioning and as aerosol propellants.
hehe, i love the sfmg
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