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Old 12-18-2003, 11:46 AM   #1
steeter
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Member#: 47632
Join Date: Nov 2003
Location: Ottawa, Canada
Vehicle:
2013 WRX 4dr
Dark Grey

Default gas consumption

did search....but still have a questions.

So, I live in Canada and I drive a Forester

When I got it this past July, I ran the A/C all the time, shifted gears at 2500. I didn't drive faster that 120Km/hour. I got decient milage.

Now in Winter (car is garaged ) same thing except no A/C and the milage is changed to bad...does winter effect these cars that much? could there be something wrong?

Any help would be appreciated.

thanks
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Old 12-18-2003, 02:14 PM   #2
Slowpoke
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Member#: 19879
Join Date: Jun 2002
Location: Boston, MA
Vehicle:
2004 WRX
Java Black

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Two words: Winter Gas

Turning the HVAC knob to "Defrost" turns on your AC compressor, even though you don't have the "AC" button depressed.

Colder temperatures invariably involve more idling than in the summer months. Additional time spent idling can range from just a little to a whole lot depending on how long you like to warm up your car.

All of these factors conspire to give you crummy gas mileage in the winter months. It really shouldn't be more than a few MPGs difference though, unless you idle excessively. How much worse is your mileage?
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Old 12-18-2003, 02:23 PM   #3
steeter
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Join Date: Nov 2003
Location: Ottawa, Canada
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2013 WRX 4dr
Dark Grey

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Thanks.

I generally don't let the car warm up for more that 1 minute. It is garaged and I don't push it until it is warm. My milage has definaley not doubled, but it is noticable. I will chauk it up to winter gas, cold starts and yes the defrost/AC issue.

Someone mentioned a bad 02 sensor???
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Old 12-18-2003, 07:36 PM   #4
cjbruce
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Member#: 34114
Join Date: Mar 2003
Location: Newbury Park, CA
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2003 WRX Wagon
WRB

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My old Accord averaged 31 mpg in the summer and 24 mpg in the winter. It was entirely due to the extra (sometimes large) amount of time I spent idling. Last winter the problem went away when I moved to SoCal.

But I still miss winter. A lot.
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Old 12-19-2003, 09:11 AM   #5
bmorton
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Location: London, Ontario
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2004 Outback Sport

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I usually notice a 3-4 mpg difference between summer and winter driving. My idling habits don't change with the seasons and I don't use the defrost much so I chalk the mileage drop up to the winter gas.
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Old 12-19-2003, 11:46 AM   #6
steeter
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Dark Grey

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Thanks guys

Merry Christmas.
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Old 12-19-2003, 11:18 PM   #7
mj02wrx
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wr blue pearl

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Its most likely caused by the oxygenated fuel used in the winter months. The engine wont burn it as efficiently as non- oxygenated fuel. Winter fuel is basically watered down.
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Old 12-20-2003, 12:43 PM   #8
speaker
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Chapter/Region: NESIC
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MY02 WRX Sport Wagon

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02 WRX auto -

250 - cold weather
300 - warm weather

Babied to spirited driving
.
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