12-05-2010, 02:02 PM
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#1
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GLS member
Join Date: Oct 2010
Location: MA
Posts: 1,369
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Only getting 240 miles per tank
Im only getting around 20 mpg 4 cylinder eco 2.2L ( automatic )
what problems could be affecting this?
Last edited by spc2125 : 12-09-2010 at 05:53 PM.
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12-05-2010, 02:03 PM
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#2
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GX Member
Join Date: Oct 2010
Location: Canada, Mississauga
Posts: 72
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Fuel filter, air filter, and spark plugs can all effect the mileage your getting.
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12-05-2010, 02:31 PM
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#3
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A-mod Pirate
Join Date: Jul 2008
Location: Big Bad Cali
Posts: 3,016
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tire pressure. and the way u drive
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12-05-2010, 03:41 PM
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#4
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636 whp
Join Date: Aug 2006
Location: AZ
Posts: 11,907
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Please don't use "per tank." It's nowhere near accurate. Use MPG.
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12-05-2010, 05:51 PM
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#5
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GX Member
Join Date: Nov 2010
Location: Ottawa
Posts: 2
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Automatic or Standard?
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12-05-2010, 06:27 PM
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#6
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Premier V.I.P. Member
Join Date: Jan 2006
Location: Pekin, IL.
Posts: 1,233
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Quote:
Originally Posted by [ion] C2
Please don't use "per tank." It's nowhere near accurate. Use MPG.
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... so true!!!
__________________
2008 Chevrolet Silverado 1500 LT1 Z71/4x4
2000 Oldsmobile Alero GLS - Sold
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12-09-2010, 12:12 AM
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#7
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GX Member
Join Date: Mar 2010
Location: L-201, NJ
Posts: 27
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wow you're lucky that youre at least getting that much. The most i ever got was around 140 miles per tank and its a 4door, automatic, v6. I have to fill up like every single week and gas is getting close to $3 a gal. Next time i go for an oil change, which should be soon, I gotta ask to have the fuel filter checked.
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12-09-2010, 12:19 AM
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#8
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GLS member
Join Date: Apr 2010
Location: Valley City, ND
Posts: 999
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Sounds like more than a bad fuel filter, you're talking about 10 to the gallon, which I'm getting right now, in winter, E10 gas, 5 minute warmups, and a partially-clogged cat.
__________________
2003 Alero GL2 LA1: pacesetter cat back, Energy Speed WAI, Magnaflow downpipe/cat, tinted tail lights, and polished letters on intake manifold.
1987 Honda Rebel 450
1967 Buick Riviera 430 Wildcat: roadworthy but needs restoration.
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12-09-2010, 12:52 AM
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#9
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Premier V.I.P. Member
Join Date: Feb 2009
Location: Oxbow SK
Posts: 1,385
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lmao at you mileages.
but to help mileage (but decrease traction in the winter) i run high tire psi. i clean my air filter regularly.
i've also noticed better mileage after seafoaming my car. make sure you have to brakes dragging. don't haul around lots of weight. if you have a big stereo turn it down.
plugged cat will decrease mileage, but should throw a code?
check spark plugs, could be fouled.
and honestly 20mpg city mileage isn't too terrible for a v6. i barely get 25 in my 4cyl with a standard. and i dont really drive that nicely.
check all those things. easy to do, and cheap for the most part.
watch the way you drive too
__________________
2002 Alero w/ 2.2 ecotec 5 speed
power window conversion, heated leather seats, 16" rims, high & low hids, auto dimming rear mirror, speedbuilt front and rear sway bars, poly bushings all around.
2005 Silverado 2500HD w/ 6.0l Vortec 4L80E
Tuned 6.0l, exhaust, intake, with 450000km on the odometer. Tow Rig
1985 Pontiac Trans Am GTA w/ 5.7 Vortec 700r4
mild vortec 350 with 4 speed auto. performance suspension. factory gold color. project car
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12-09-2010, 10:26 AM
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#10
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GLS member
Join Date: Apr 2010
Location: Valley City, ND
Posts: 999
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It's not totally clogged, but it is somewhat, or just shot, cause my exhaust smells like rotten eggs, and my mileage sucks. Good news is my magnaflow cat/downpipe should be delivered today 
__________________
2003 Alero GL2 LA1: pacesetter cat back, Energy Speed WAI, Magnaflow downpipe/cat, tinted tail lights, and polished letters on intake manifold.
1987 Honda Rebel 450
1967 Buick Riviera 430 Wildcat: roadworthy but needs restoration.
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12-09-2010, 10:29 AM
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#11
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Gone
Join Date: Mar 2004
Location: Lockport Ny
Posts: 19,244
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wow... snow tires(slightly low pressure), 25*F, and slightly faster than highway speeds (55-75mph)
...I average 26mpg with my 3400.
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12-09-2010, 10:30 AM
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#12
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GLS member
Join Date: Apr 2010
Location: Valley City, ND
Posts: 999
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until about a month ago I could go 75 on interstate and average out about 30 with my LA1
__________________
2003 Alero GL2 LA1: pacesetter cat back, Energy Speed WAI, Magnaflow downpipe/cat, tinted tail lights, and polished letters on intake manifold.
1987 Honda Rebel 450
1967 Buick Riviera 430 Wildcat: roadworthy but needs restoration.
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12-09-2010, 01:23 PM
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#13
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GX Member
Join Date: Oct 2010
Location: Canada, Mississauga
Posts: 72
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I also get about 26mpg with my 3400 on the highway and about 21 mpg in the city.
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12-09-2010, 02:32 PM
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#14
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A-mod Pirate
Join Date: Jul 2008
Location: Big Bad Cali
Posts: 3,016
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jeez i get like 20 highway and 18 city. imma replace my fuel filter n plugs
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12-09-2010, 04:45 PM
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#15
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Premier V.I.P. Member
Join Date: Jan 2006
Location: Pekin, IL.
Posts: 1,233
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Best i have gotten was 28 on the highway when I traveled from AZ to NM to see some family over the holidays. I average about 24-26 highway and 18-22 city (depending on how i drive.)
__________________
2008 Chevrolet Silverado 1500 LT1 Z71/4x4
2000 Oldsmobile Alero GLS - Sold
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12-09-2010, 05:29 PM
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#16
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Gone
Join Date: Mar 2004
Location: Lockport Ny
Posts: 19,244
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if we're talking best... i've got 32-35mpg on the way to ASS...
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12-09-2010, 09:31 PM
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#17
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Premier V.I.P. Member
Join Date: Feb 2009
Location: Oxbow SK
Posts: 1,385
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best my alero has gotten was 42 us mpg. i've seen that and 40mpg twice this summer
__________________
2002 Alero w/ 2.2 ecotec 5 speed
power window conversion, heated leather seats, 16" rims, high & low hids, auto dimming rear mirror, speedbuilt front and rear sway bars, poly bushings all around.
2005 Silverado 2500HD w/ 6.0l Vortec 4L80E
Tuned 6.0l, exhaust, intake, with 450000km on the odometer. Tow Rig
1985 Pontiac Trans Am GTA w/ 5.7 Vortec 700r4
mild vortec 350 with 4 speed auto. performance suspension. factory gold color. project car
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12-09-2010, 09:41 PM
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#18
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GLS member
Join Date: Apr 2010
Location: Valley City, ND
Posts: 999
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Yeah but you have an ecotec with standard tranny. I wish I did.
__________________
2003 Alero GL2 LA1: pacesetter cat back, Energy Speed WAI, Magnaflow downpipe/cat, tinted tail lights, and polished letters on intake manifold.
1987 Honda Rebel 450
1967 Buick Riviera 430 Wildcat: roadworthy but needs restoration.
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12-09-2010, 09:43 PM
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#19
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Premier V.I.P. Member
Join Date: Feb 2009
Location: Oxbow SK
Posts: 1,385
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yup. but this is the ecotec section.
alot of it comes down to how you drive it. even on the highway
__________________
2002 Alero w/ 2.2 ecotec 5 speed
power window conversion, heated leather seats, 16" rims, high & low hids, auto dimming rear mirror, speedbuilt front and rear sway bars, poly bushings all around.
2005 Silverado 2500HD w/ 6.0l Vortec 4L80E
Tuned 6.0l, exhaust, intake, with 450000km on the odometer. Tow Rig
1985 Pontiac Trans Am GTA w/ 5.7 Vortec 700r4
mild vortec 350 with 4 speed auto. performance suspension. factory gold color. project car
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12-09-2010, 11:04 PM
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#20
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Premier V.I.P. Member
Join Date: Jan 2006
Location: Pekin, IL.
Posts: 1,233
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Quote:
Originally Posted by colonel6632
yup. but this is the ecotec section.
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I just realized this  ...
My figures on a 3400 and very low altitude in AZ. I forgot to figure my mileage when I went to ASS this year. I will have to figure out when I go to ASS again this coming summer (hopefully.)
__________________
2008 Chevrolet Silverado 1500 LT1 Z71/4x4
2000 Oldsmobile Alero GLS - Sold
-------------------------------------------------------
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