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post #1 of 31 (permalink) Old 10-16-2008, 08:44 AM Thread Starter
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Gas Mileage

hey everyone, im new here, and wanna know what you guys are getting for in town gas mileage? I have an 08 cobalt Base model with an automatic. I have about 2500 miles on it now , and the info center says 19.5 mpg. I was hoping for better than that, but i guess not. Now i know that maybe that info center isnt real accurate, and i will figure it out the old fashion way, but i dont drive it a whole lot, being that its my wifes car.Was just wondering what others were getting with an automatic. thanks
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post #2 of 31 (permalink) Old 10-16-2008, 09:08 AM
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Originally Posted by tm08cobalt View Post
hey everyone, im new here, and wanna know what you guys are getting for in town gas mileage? I have an 08 cobalt Base model with an automatic. I have about 2500 miles on it now , and the info center says 19.5 mpg. I was hoping for better than that, but i guess not. Now i know that maybe that info center isnt real accurate, and i will figure it out the old fashion way, but i dont drive it a whole lot, being that its my wifes car.Was just wondering what others were getting with an automatic. thanks
I have an 06 Cobalt and I get about 35 to 36 mpg. But also its going to be less in stop and go traffic in town, but the lowest I've had was 32mpg
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post #3 of 31 (permalink) Old 10-16-2008, 09:17 AM
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your always gonna get low on city but hwy its alot better cuz u stay constant stopin and goin uses alot of gas id say to try to save dont pull off fast slow down way before you have to stop sometimes u can catch that green light before you stop and just cruise
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post #4 of 31 (permalink) Old 10-16-2008, 09:40 AM
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try not accelerating as hard from stops, i've noticed it will kill in town mileage. reset the DIC and adjust your driving habits and see what you get. in my ss/sc originally i was getting about 26-27 in the city. add some custom top secret mods and now im averaging 36-37 mpg city, 49-50 on the highway. i thought it was too good to be true at first sight of my DIC, checked it with 3 different fuel mileage calulators and it was correct.

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post #5 of 31 (permalink) Old 10-16-2008, 09:52 AM
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Originally Posted by blkbalt06 View Post
try not accelerating as hard from stops, i've noticed it will kill in town mileage. reset the DIC and adjust your driving habits and see what you get. in my ss/sc originally i was getting about 26-27 in the city. add some custom top secret mods and now im averaging 36-37 mpg city, 49-50 on the highway. i thought it was too good to be true at first sight of my DIC, checked it with 3 different fuel mileage calulators and it was correct.
by top secret modifications, you mean yoou removed the lead from the top of the accelerator pedal, and tweaked the normal operations of the vehicle by bringing down average speeds?
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post #6 of 31 (permalink) Old 10-16-2008, 10:00 AM
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by doing that i only noticed a few more overall mpg's.

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post #7 of 31 (permalink) Old 10-16-2008, 03:33 PM
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22K miles in...

...and lots of mods --> 27mpg hwy @ 75mph


2006 Cobalt LS 2.2l -> Dragonslayer
Ram Air Hood->GM CAI->2.4l Intake->GM Header->GMPP
Tranny Mounts->Short-Shifter
Sportlines->Shocks->Swaybar->Strutbar
Stocker 15's->205/60 Potenza Grid's
20% Tint->Rebadged->Livery
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post #8 of 31 (permalink) Old 10-16-2008, 04:37 PM
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at 55 mpg with cruise control i get 47mpg. if you dont believe me ill upload a video, i took a video of it.

as far as town driving goes. i get about 28-32

2007 Black LT coupe
35% Tint all around - Completly debadged - Side Moldings Removed
KICKER ZX 650 RMS interior amp - KICKER ZX1000 RMS Sub Amp
1 KICKER 12" L7 - All new pioneer interiors - Pioneer Avic Z2 W/ GPS
Rockford 1 Farad capcitor - Trunk, Doors, and Rear deck Dynamated - PS2 with guitar hero
Blue footwell neons - Two Alpine type S Tweeters

Engine mods:
K&N air filter
^^^RIP^^^
2006 TBSS!
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post #9 of 31 (permalink) Old 10-16-2008, 06:03 PM
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the most i have ever seen outta my 07 2.2 with mods is 30 maybe 31 im usually around 24-26 in town and 27-29 on highway at about 75. so how the heck do you get 49-50??? do you shut off your car down hills and cruise?!? let me in on that secret

07 LS 2.2
CURRENT:
Eibach Suspension
17x8 Motegi D6
205 40 17 General UHP Rubbers (Off for winter)
Custom Flipped K & N C/A Intake
2 1/2 Custom Cat Delete Flowmaster 40 Series Muffler Exhaust(Manifold Back)
Plugs, Oil, Oil Filter, 93 Oct Fuel at all times

Soon to come and Need some input!?!:
Short Throw Shifter
Header
Coils
Swapping Computer
Brakes

and sitting in my garage a TD05 Turbo w/ Front mount!!!
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post #10 of 31 (permalink) Old 10-16-2008, 10:17 PM
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Stock I was averaging 31.3.
Next week, I will know what the car has done with the mods.
I reset it at oil change time and it will be 3000 mikes Monday.
I will lwt you know....

2007 LT 2.2
MODS:
GMPP Air Intake * GMPP Extrude Honed Manifold * GMPP Cat-Back Performance Exhaust * Vibrant D/P * Jet Stage 2 Module
MOBIL 1 Synthetic Oil * DC Sport Strut Tower Brace * Color Matched Mirror Covers * EuroAntenna * 30-15 3M FX Tinting
Bridgestone Potenza Pole Position RE960AS on Premium Wheels

Future MODS:
2.4 Intake Manifold Conversion * 2.4 TB * TUNE
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