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Chevrolet Cobalt Real World MPG

295 messages,  Last post on Nov 23, 2009 at 4:23 PM

You are in the Chevrolet Cobalt Forum. Your Hosts are pat & karens

What is this discussion about? Chevrolet Cobalt, Fuel Efficiency (MPG), Coupe, Sedan


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#51 of 295
Re: www.fueleconomy.gov. [walterquint] by steve333
Apr 05, 2007 (5:49 pm)
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Replying to: walterquint (Apr 05, 2007 4:59 pm)

My mothers 2006 Impala with the 3.5L V6 is averaging 15MPG. It took many calls to GM to finally get the dealer to admit something is wrong. I am going to take it in in a couple weeks.
 
My 2006 Cobalt's MPG is down to 24MPG from 27. I am seriously considering putting in a K&N Air Filter to replace the OEM filter. I hear the K&N filters can increase MPG by up to 4MPG and increase power.
#52 of 295
cobalt ss/sc by okko1
May 02, 2007 (5:54 pm)
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car has about 3500 miles on it started at 25mpg has improved
to 28.3 mpg hiway sounds like every body is doing better than i am wife has 02 z28 camaro with 5.7 LS1 has done
22.5mpg since it was new
#53 of 295
Re: cobalt ss/sc [okko1] by steve333
May 02, 2007 (6:38 pm)
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Replying to: okko1 (May 02, 2007 5:54 pm)

My LT Sedan just dropped below 23MPG City driving. I've never gotten above 28MPG on the freeway.
#54 of 295
'06 Cobalt LS Coupe w/auto trans by sharkman1
May 03, 2007 (6:51 pm)
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I've had my LS 11 months w/ 21,800 miles and its getting high 30's (30.8 mpg), thats with some spirited driving . Drove to San Antonio last August and the mpg was heading for 34 mpg but topped out in mid 33mpg, got back to Houston traffic
#55 of 295
Re: cobalt ss/sc [steve333] by okko1
May 03, 2007 (7:44 pm)
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Replying to: steve333 (May 02, 2007 6:38 pm)

curious do you have the 2.4
#56 of 295
Re: Why is 30 mpg condsidered "good"????? [jhknight] by okko1
May 03, 2007 (8:03 pm)
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Replying to: jhknight (Mar 14, 2007 2:43 pm)

the internal combustion engine is nothing more than a hotair pump. horse power and torque to weight are options how much hot air are you pumping
#57 of 295
Computer readout by cmhj2000
Aug 11, 2007 (6:11 pm)
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I just shake my head in misbelief.
 
Only have 150 miles on my 07 2.2 LT 1 W/Auto. Haven't been drving it with economy in mind & won't until I get few more miles on it. More concerned with getting the initial break-in with varying speeds & moderate to hard acceleration for short periods of time etc.
 
Any who, the computer is telling me I'm averaging nearly 38 MPG. I do have the tires aired up but nothing else. If this car does this on a 1,050 mile trip I have planned in 3 weeks I'll be happier than a pig in slop.
#58 of 295
Re: Computer readout [cmhj2000] by poncho167
Aug 12, 2007 (3:57 am)
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Replying to: cmhj2000 (Aug 11, 2007 6:11 pm)

Those computers are close but not always perfect. Try the manual way by calculating the gallons and miles at fill-ups to see how close the puter is.
#59 of 295
Re: Computer readout [cmhj2000] by grosloup
Aug 12, 2007 (9:19 am)
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Replying to: cmhj2000 (Aug 11, 2007 6:11 pm)

The way I do it is by filling the tank up to the rim. I even rock the car to put more in. (the tank neck should be filled to).
 Then I put my mileage to "0" and when it's time to fill up I do the same as explained above. Take the mileage divided by the gallons burned, and there you go, you get your exact m.p.g.
  The computer gives you the average m.p.g. that you did in the passed hour of driving.
  Not to accurate.
#60 of 295
Re: Computer readout [poncho167] by cmhj2000
Aug 12, 2007 (9:56 am)
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Replying to: poncho167 (Aug 12, 2007 3:57 am)

I realize the only way to get an accurate read is to fill the tank a couple times and average it out, which I'll be doing on my planned trip at the end of the month. Have been driving for 40 years.
 
Was simply commenting I don't believe what the computer is saying.
 
Will report back my overall average of about 2,500 miles that'll be logged for the first half of Sep.

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