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My People, Does AC Affect Fuel Consumption Of A Car? - Car Talk - Nairaland

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My People, Does AC Affect Fuel Consumption Of A Car? by Mohwin(m): 6:49am On Sep 13
Me and my freinds have had this discussion and we argued. Me i strongly believe that a car's AC has very little to do with the car engine, instead it is keeping the car windows down that causes drag and increase fuel consumption. I have seen people say they cant put on their AC because the car will consume more fuel. So i need more light on this pls.

8 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by NLOwner(m): 7:58am On Sep 13
For city driving?? Yes it does affect consumption.
But if you're talking about highway driving, then the effect on fuel consumption is very negligible, or nil sef..

It depends!

42 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by Mynd44: 8:16am On Sep 13
Anything that demands more work/energy from your engine demands more fuel from your tank.

Same way the more weight you have in passengers, the more your fuel consumption as long as it is the same car and other variables are constant

60 Likes 3 Shares

Re: My People, Does AC Affect Fuel Consumption Of A Car? by cr7rooney10(m): 8:17am On Sep 13
Yes

6 Likes 2 Shares

Re: My People, Does AC Affect Fuel Consumption Of A Car? by wunmi590(m): 8:18am On Sep 13
With my own little knowledge, I don't think so, because the car A.C, have their own gas cylinder.

I am open to correction.


Modified:

Thank you all for the corrections. cool

15 Likes 1 Share

Re: My People, Does AC Affect Fuel Consumption Of A Car? by ct2(m): 8:19am On Sep 13
fill you tank and drive with a c and also do without actually this will clear your doubt

23 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by policy12: 8:19am On Sep 13
Someone should please help me, my AC is emitting heat.

7 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by surveyorng: 8:19am On Sep 13
Every extra load on the engine directly increases the fuel consumption of the car.

7 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by Antoeni(m): 8:19am On Sep 13
Sure

1 Like

Re: My People, Does AC Affect Fuel Consumption Of A Car? by AmuDimpka: 8:19am On Sep 13
Compressor puts load on the engine....it's simple physics....the more the load the higher the energy consumption


Just lie when you are in your home....you out AC..you pay higher bill than when you don't ...in car...the bill is fuel


Did you do physics in secondary School at all ?
Mohwin:
Me and my freinds have had this discussion and we argued. Me i strongly believe that a car's AC has very little to do with the car engine, instead it is keeping the car windows down that causes drag and increase fuel consumption. I have seen people say they cant put on their AC because the car will consume more fuel. So i need more light on this pls.

15 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by AmuDimpka: 8:20am On Sep 13
It's simple physics....our education system is in a mess
surveyorng:
Every extra load on the engine directly increases the fuel consumption of the car.

6 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by youngbabaj(m): 8:20am On Sep 13
sorry bro, I for answer you,
but God never pick my call yet, I no even get wheelbarrow not to talk of car tyre

God will provide

75 Likes 4 Shares

Re: My People, Does AC Affect Fuel Consumption Of A Car? by RealSniper: 8:21am On Sep 13
What are you saying cos me am not understanding oh
Re: My People, Does AC Affect Fuel Consumption Of A Car? by AmuDimpka: 8:21am On Sep 13
You don't have AC you have heater ... It's gouuf in tokunbo cars from Europe and north Canada
policy12:

Someone should please help me, my AC is emitting heat.

6 Likes 1 Share

Re: My People, Does AC Affect Fuel Consumption Of A Car? by HRtechnique: 8:21am On Sep 13
I THINK THE THREAD CAN BE CLOSED AS THE QUESTION HAS BEEN ANSWERED.

2 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by Wynnah(m): 8:22am On Sep 13
Have you noticed that the sound of the Engine slightly changes when you put on the AC? It shows that there is an extra weight.. But, on the highly, it doesn't really have much effect on fuel consumption as it does in Lagos Traffic.

10 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by Nuezha(m): 8:22am On Sep 13
policy12:
Someone should please help me, my AC is emitting heat.
probable cause(s) 1. No gas 2. Heat & cold door swing not working etc

2 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by Springsdy456958(m): 8:22am On Sep 13
policy12:

Someone should please help me, my AC is emitting heat.
check you may need to refill d A/C. guest it's empty.
Re: My People, Does AC Affect Fuel Consumption Of A Car? by donemitex1: 8:22am On Sep 13
You mean your AC or Warmer? grin please make sure the knob is turned to cold air that's Blue. If it is and still blows hot, please go and refill your AC gas
policy12:

Someone should please help me, my AC is emitting heat.

4 Likes 1 Share

Re: My People, Does AC Affect Fuel Consumption Of A Car? by faceURfront(m): 8:22am On Sep 13
Yes it does. I'll say why later


Modified.

There is a direct relationship between output power and the speed of the rotatory or linear moving parts of the engine and hence the speed of the car.

Assuming you are driving at a constant speed without AC, the moment you switch ON the AC, there is an additional load on the system, but because the input power is constant, the output speed reduces. This is noticeable when the car is moving at slower speeds, say less than 80km/h.

If you must maintain the initial speed of the car before the AC was switched ON, then u need to increase the input power of the car to cater for the additional load occasioned by the AC switched ON. This is achieved by increasing the quantity of fuel being sent to the combustion chamber by increasing the pressure on the acceleration pedal.

Therefore, you will discover that there is more fuel consumed when the AC is switched ON as compared to when it is not.

It is this same principle that applies to electric power systems known as Load Frequency (speed) Control.

11 Likes 1 Share

Re: My People, Does AC Affect Fuel Consumption Of A Car? by otabuko(m): 8:23am On Sep 13
Of course. The question should be how big it consumes compared to when AC is not in use.

4 Likes 1 Share

Re: My People, Does AC Affect Fuel Consumption Of A Car? by 2shure: 8:23am On Sep 13
How much for eod compressor.
I wan put am for crv 08 model.
Re: My People, Does AC Affect Fuel Consumption Of A Car? by cr7lomo: 8:25am On Sep 13
If ur car is brand new, it will not affect fuel consumption until ur car starts to get old

3 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by positivelord: 8:25am On Sep 13
Plz I will like to disagree if the AC is factory fitted and the engine is in good condition. no noticeable difference in fuel consumption

9 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by chuksiyk31(m): 8:26am On Sep 13
AmuDimpka:
It's simple physics....our education system is in a mess
...bro take it easy. ..he could be an art student ....

18 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by pat077: 8:27am On Sep 13
policy12:

Someone should please help me, my AC is emitting heat.
your AC don turn heat exchanger grin

1 Like

Re: My People, Does AC Affect Fuel Consumption Of A Car? by Chikwado1991(m): 8:27am On Sep 13
wunmi590:
With my own little knowledge, I don't think so, because the car A.C, have their own gas cylinder.

I am open to correction.
do you know the A.C can't work without the car ignition?

4 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by allisonluvsu(m): 8:27am On Sep 13
Ok
Re: My People, Does AC Affect Fuel Consumption Of A Car? by DropShot: 8:28am On Sep 13
Mohwin:
Me and my freinds have had this discussion and we argued. Me i strongly believe that a car's AC has very little to do with the car engine, instead it is keeping the car windows down that causes drag and increase fuel consumption. I have seen people say they cant put on their AC because the car will consume more fuel. So i need more light on this pls.
No emperical evidence to support the notion that the AC makes a car consume more fuel.

2 Likes

Re: My People, Does AC Affect Fuel Consumption Of A Car? by Joshkid(m): 8:28am On Sep 13
HRtechnique:
I THINK THE THREAD CAN BE CLOSED AS THE QUESTION HAS BEEN ANSWERED.

How do you want others to benefit from it then

1 Like

Re: My People, Does AC Affect Fuel Consumption Of A Car? by Kobicove(m): 8:29am On Sep 13
I think AC usage increases fuel consumption

1 Like

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