Turning Off the car aircon, does it help in saving on fuel?

**badbadtz.carlo** · January 29th, 2009 06:52 AM

Originally Posted by afrasay

a little OT:
easy lang sa mga nag off ng aircon at nagbababa ng windows pag gabi na. an officemate of mine got robbed by two motorcycle riding baddits, one cut and stop infront of his Revo while the other brush up on his side and poke a gun on him. it happened along Q. ave eastbound infront of sto. domingo church.

OT ren: kaso this can happen naman regardless of the windows being down or not; driving alone or with company.

para nde OT masyado, question on turning off A/C. ano ba difference ng turning off A/C through A/C button and turning off the fan when it comes to FC? same lang ba effect if ON yung fan but OFF yung compressor compared sa OFF ung both (Fan/Compressor)?

sorry, nde ko talaga alam

**XTO** · January 29th, 2009 08:30 AM

Originally Posted by badbadtz.carlo

question on turning off A/C. ano ba difference ng turning off A/C through A/C button and turning off the fan when it comes to FC? same lang ba effect if ON yung fan but OFF yung compressor compared sa OFF ung both (Fan/Compressor)?

sorry, nde ko talaga alam

turning off the a/c switch button is like not using your a/c completely, no load to the engine therefore lesser FC. fan speeds only uses electric current from your alternator and battery when off.

**spyghost** · January 29th, 2009 09:10 AM

nagtataka lang ako kasi kakaiba ang dagdag na load ng a/c ko sa makina in such a way na parang dadapa ang makina twing engage ang compressor although bago lahat ng engine supports. e.g. when i am running in 1st gear and the a/c engages, parang dadapa ang makina ko.

i've tried change oil, oil/fuel/air filter, tune up, change all belts. medyo nakakairita rin kasi lalo na pag hindi kabilisan ang takbo. ramdam na ramdam ito 0 - 40 kph

given this case, pwede ko masabi na me effect ang a/c sa gas consumption; however, i know for a fact that there is something wrong because of how it runs. what could be the problem?

**mbeige** · January 29th, 2009 01:07 PM

Originally Posted by spyghost

nagtataka lang ako kasi kakaiba ang dagdag na load ng a/c ko sa makina in such a way na parang dadapa ang makina twing engage ang compressor although bago lahat ng engine supports. e.g. when i am running in 1st gear and the a/c engages, parang dadapa ang makina ko.

i've tried change oil, oil/fuel/air filter, tune up, change all belts. medyo nakakairita rin kasi lalo na pag hindi kabilisan ang takbo. ramdam na ramdam ito 0 - 40 kph

given this case, pwede ko masabi na me effect ang a/c sa gas consumption; however, i know for a fact that there is something wrong because of how it runs. what could be the problem?

Three things.

May oil ba yung compressor sa loob? Has it been maintained properly?

Original R12 ba siya na converted to run R134a? If so compressor will need to run harder to provide the same cooling effect as R12. At tama ba pagkaka charge (not overfill/underfill)?

If older type of compressor then chances are yes malakas ang kain niya ng HP at tataas fuel consumption. Newer compressors mas efficient though still consumes more fuel, of course, when in use.

**spyghost** · January 30th, 2009 01:47 PM

yes, oil is enough. it is original 134 (not converted). 8 years narin ang aircon system (yr 2000). makukuha kaya ito sa linis? sa linis ba required na palitan ang dryer saka expansion valve?

**cornelsky** · February 15th, 2009 05:23 PM

Originally Posted by oj88

Thanks. Landed price is about Php 8-9K. It should be about 2K cheaper if not for the additional shipping and taxes.

s
where aailable ag sca* guage?

**oj88** · February 15th, 2009 06:05 PM

Originally Posted by cornelsky

s
where aailable ag sca* guage?

Got it from eBay.

**s_quilicot** · February 15th, 2009 08:36 PM

Originally Posted by oj88

Got it from eBay.

is it compatible with 1st gen altis sir?

**urvandub** · March 8th, 2009 06:34 PM

let us be reminded too, that having an accessory too many causes fuel economy to go down. these include big audio video set ups in full blast. our alternators are burdened more filling up a good charge to the battery. and has anyone noticed the slight difference in idling speed when we turn on our headlights, from off to dim to bright? and yes, those roof racks..

**urvandub** · March 8th, 2009 06:56 PM

Originally Posted by coiter

yup pansin ko to. sa 1.1L at 1.6L gas cars, may difference talaga sa mileage (mga 1-2 kpl normal driving). pero sa 2.7L na diesel, parang wala. same ang mileage kahit on or off.

my van has a 2.7 and honey, when the a/c off i get 9.5km/li. a/c on and i get 11km/li. city driving that is. the best eco run i have with a/c on is 14km/li. forget those sprinting starts and screeching halts.