Turning on the a/c - Page 2 - Toyota Yaris Forums

Idahotom · 07-22-2011, 02:48 PM

Quote:

Originally Posted by malibuguy

i pulse my A/C

i generally leave it cranked for the first like 10 miles until the cabin gets cool, then i pulse it off going up hills & shit

averaging over 50+mpg my last 6 tanks

I do the same: like going down some big hills around here, in DFCO, I'll crank it to the max, pulling that same hill later in the day I'll turn it off. It will stay coolish for a while after turning it off, But when it's REALLY hot, screw it, I just leave it on! I am especially liking my WHITE tinted window Yaris, it is everything I hoped for summer driving, cool and cheap to operate. 46.96 MPG last tank.

malibuguy · 07-22-2011, 06:32 PM

you don't get cut off with the A/C on...unless things changed since my xB

you still get like instead of 9999mpg...its like 157mpg, haha

Kal-El · 07-23-2011, 05:01 PM

It's crazy not to use your AC, unless for some reason you like to suffer or prefer having hot air blowing in your face with the windows down.

In a Yaris, it's costing you not even one penny per mile to be comfortable with the AC on. In fact, right now at today's gas prices, it only costs about 8.5 cents a mile to drive. AC on might raise it to 8.7 cents per mile. If one is too cheap for that, sell your car and stay home.

For comparison, 4,000 miles during 3 months of summer driving with the AC on = about $80 extra (for AC). That's a rough over estimate but just gives you an idea. $20 a month is well worth the luxury.

caineroad · 07-23-2011, 11:24 PM

Hi,

when I have my a/c on, I lose 50km from a full tank of gas

i've done that experiment many times

i think 50km is quite a lot..... if thats makes me cheap then ok i'd take it

Idahotom · 07-24-2011, 12:15 AM

Having a Scan Gauge makes it pretty persuasive to use the air when needed, but not more then that. I don't drive around sweating, but I do give a little thought to big upgrades and downgrades, and mine does DFCO when the air is on, according to the Gauge anyway. It hasn't got real hot here yet also, when it hits triple digits I'm sure I'll say the hell with it and just leave it on! But for the more moderate temps I am cheap enough to use it sparingly, while still staying cool, best of both worlds there! For sure the dollar cost is nothing, it's more being super efficient I get off on, and why I drive a Yaris to start with.

caineroad · 07-26-2011, 05:21 PM

Quote:

Originally Posted by Kal-El

$20 a month is well worth the luxury.

a/c is luxury

Yaristeve · 07-26-2011, 06:07 PM

Quote:

Originally Posted by caineroad

a/c is luxury

I disagree; when you reach my age, A/C is a necessity.

monchito18 · 07-26-2011, 11:15 PM

in Puerto Rico it's a necessity.

Kal-El · 07-27-2011, 08:13 AM

My AC goes on anytime it passes about 70° F. Warm air is unacceptable to me.

daf62757 · 07-28-2011, 11:03 AM

Quote:

Originally Posted by Kal-El

My AC goes on anytime it passes about 70° F. Warm air is unacceptable to me.

Amen!

I just drove from Indianapolis to Chicago.....74 MPH and stopped to gas up....just a hair over 40 MPG with the AC on the whole way.

I think it is foolish to not use the AC!

daf62757 · 07-28-2011, 11:04 AM

Quote:

Originally Posted by caineroad

a/c is luxury

Maybe in a 3rd world country.....but not North America!

caineroad · 07-28-2011, 10:40 PM

Quote:

Originally Posted by daf62757

Maybe in a 3rd world country.....but not North America!

Lol exactly! It is not luxury. Lol some people have misunderstood me

john21031 · 07-29-2011, 02:07 AM

The higher the fan, the more fuel you will burn. This is because the higher the fan, the quicker it will remove the heat from the condenser, whereby lowering the compression and causing the compressor to come on again and start compressing freon.

Recirculation saves fuel because your cooled air in the cabin is recirculating and you are not trying to cool down the outside air as it happens in the fresh mode.

More electrical load does use more fuel. That is because the alternator will create more resistance on the belt and crankshaft making the engine work harder and burn more fuel. Turning the heater does nothing as it only opens the hot coolant of the coolant system and lets it go into the heater core in the dash... if anything, it may prevent your radiator fan from turning on, thus reducing the fuel consumption. Dont power anything from the batter if you can help it, it's only designed to start the car and provide emergency power when the hazard lights are on or you need to turn on the lights in the cabin.

mo_feezy · 07-29-2011, 11:07 AM

I just got back from a 4500+ mile trip in 14 days. I ran the A/C the whole time, pulsing on and off as needed in the mountains. Used cruise control at the speed limit plus or minus a couple mph depending on conditions. My lowest tank (let friend drive half of it) was 37mpg. My highest was 42.8mpg.

07-22-2011, 06:32 PM	#20
malibuguy Obsessed with 1.5L Drives: '10 PW Yaris Sedan Join Date: Feb 2011 Location: Westminster, MD Posts: 907	you don't get cut off with the A/C on...unless things changed since my xB you still get like instead of 9999mpg...its like 157mpg, haha __________________ -Greg...the Exhaust Freak. -10 PW sedan 107whp/110wtq, full exhaust, suspension bits, TRD LSD -06 Highlander 3mzfe Limited AWD -82 Malibu, 1uzfe swap -97 Tercel coupe, 1nzfe/4.31 -96 Tercel coupe, Turbo 5efe, autoX -96 Tercel 4dr

07-26-2011, 11:15 PM	#26
monchito18 View User's Garage Drives: Yaris sedan Join Date: Jan 2009 Location: Puerto Rico, Isabela Posts: 427	in Puerto Rico it's a necessity. __________________

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07-23-2011, 05:01 PM	#21
Kal-El Drives: 07 Yaris S Sedan 5-Speed Join Date: Oct 2008 Location: Massachusetts Posts: 2,179	It's crazy not to use your AC, unless for some reason you like to suffer or prefer having hot air blowing in your face with the windows down. In a Yaris, it's costing you not even one penny per mile to be comfortable with the AC on. In fact, right now at today's gas prices, it only costs about 8.5 cents a mile to drive. AC on might raise it to 8.7 cents per mile. If one is too cheap for that, sell your car and stay home. For comparison, 4,000 miles during 3 months of summer driving with the AC on = about $80 extra (for AC). That's a rough over estimate but just gives you an idea. $20 a month is well worth the luxury.

07-23-2011, 11:24 PM	#22
caineroad Drives: 06 Yaris HB CE Join Date: Aug 2009 Location: Toronto Posts: 501	Hi, when I have my a/c on, I lose 50km from a full tank of gas i've done that experiment many times i think 50km is quite a lot..... if thats makes me cheap then ok i'd take it

07-24-2011, 12:15 AM	#23
Idahotom Drives: 2008 5 sp. LB Join Date: Oct 2010 Location: Idahoi Posts: 268	Having a Scan Gauge makes it pretty persuasive to use the air when needed, but not more then that. I don't drive around sweating, but I do give a little thought to big upgrades and downgrades, and mine does DFCO when the air is on, according to the Gauge anyway. It hasn't got real hot here yet also, when it hits triple digits I'm sure I'll say the hell with it and just leave it on! But for the more moderate temps I am cheap enough to use it sparingly, while still staying cool, best of both worlds there! For sure the dollar cost is nothing, it's more being super efficient I get off on, and why I drive a Yaris to start with.

07-27-2011, 08:13 AM	#27
Kal-El Drives: 07 Yaris S Sedan 5-Speed Join Date: Oct 2008 Location: Massachusetts Posts: 2,179	My AC goes on anytime it passes about 70° F. Warm air is unacceptable to me.

07-29-2011, 02:07 AM	#31
john21031 Drives: '10 Fit Sport MT and 2012 Fit Join Date: Oct 2008 Location: Castaic, CA Posts: 116	The higher the fan, the more fuel you will burn. This is because the higher the fan, the quicker it will remove the heat from the condenser, whereby lowering the compression and causing the compressor to come on again and start compressing freon. Recirculation saves fuel because your cooled air in the cabin is recirculating and you are not trying to cool down the outside air as it happens in the fresh mode. More electrical load does use more fuel. That is because the alternator will create more resistance on the belt and crankshaft making the engine work harder and burn more fuel. Turning the heater does nothing as it only opens the hot coolant of the coolant system and lets it go into the heater core in the dash... if anything, it may prevent your radiator fan from turning on, thus reducing the fuel consumption. Dont power anything from the batter if you can help it, it's only designed to start the car and provide emergency power when the hazard lights are on or you need to turn on the lights in the cabin.

07-29-2011, 11:07 AM	#32
mo_feezy Drives: 08 Yaris S Sedan AT Black Join Date: Oct 2008 Location: Salina, KS Posts: 55	I just got back from a 4500+ mile trip in 14 days. I ran the A/C the whole time, pulsing on and off as needed in the mountains. Used cruise control at the speed limit plus or minus a couple mph depending on conditions. My lowest tank (let friend drive half of it) was 37mpg. My highest was 42.8mpg.