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Chevrolet Cobalt Real World MPG

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Comments

  • randydriverrandydriver Member Posts: 262
    The car is not even broke in yet, :confuse: and you are starting off with good mileage...and it should get even better. So, why are you upset????
  • randydriverrandydriver Member Posts: 262
    Has anyone bought or drove the XFE version of the 2008 Cobalt?
  • gerald41gerald41 Member Posts: 37
    I've owned 2 Cobalts I had a 06 that was totaled last december and replaced it with an 08. My family loved the Cobalt so much that we didn't think twice about buying another one. My experience with the Cobalt as far as MPG's go is that I average around 22 around town and average around 35 on the HWY doing around 60 mph. Chevrolet now calls the Cobalt XFE's but there is no difference between the new or old Cobalts. Dealer told me it's just a marketing game because the Cobalt rated so high in MPG's.
  • poncho167poncho167 Member Posts: 1,178
    I just read about it today. I don't believe it is out yet. Supposedly the car will get about 10% better mileage by having the computers mapping changed from more performance minded to economy. Also the cars gear ratio will be changed along with tires that roll more easily. I personally would be willing to give up performance for mileage and that is what it sounds like according to what I read on autob--g.com, that is not the real name.

    XFE stands for-Xtra fuel economy
  • georgecavaliergeorgecavalier Member Posts: 54
    I never even heard that term before.
  • randydriverrandydriver Member Posts: 262
    I think I will just hall my butt down to the dealership and see if I can find a salesman that knows something about cars and see what is going on....I am just curious to see what they have to say........ ;)
  • poncho167poncho167 Member Posts: 1,178
    Don't count on them knowing to much about it unless they are real good at what they do. They above website that I read about it on yesterday actually said 5 mpg improvement but seemed to have the standard mpg figure wrong when saying that.
  • gtodavegtodave Member Posts: 12
    i just bought an xfe on april 19. car mfgr. date of 4/08. my daughter has a '07 auto. xfe exhaust sounds a little louder to me than my duaghters when accelerating. so far with 75% highway miles and 25% around town the computer says 32.2 and it is still going up when i check it each day. @ 70mph it tachs 2500 exactly. oh, have 600 miles on it so far.
  • randydriverrandydriver Member Posts: 262
    Sounds like good mileage so far. I checked out the closest dealership but the guy I got was trying to sell me a truck/suv. What a doof. anyway I went to another dealership and talked to one of the guys there.....and he said they did some remapping the computer and they did change the gearing in the 5-speed. He is actually a car person....how refreshing that was. :)
  • micwebmicweb Member Posts: 1,617
    I think Ford did that with the Focus as part of their model change from '06 to '07 - tweaked a little here and there and brought the highway mileage up by about 3 mpg. Then of course it came back down when the new EPA rules kicked in.

    What's funny is that Chevy also made some changes behind the scenes on the HHR (and maybe the Cobalt too) because the '07 HHR auto was a 30 mpg freeway champ, and so was the '08 DESPITE the EPA changes, which could only be if they remapped etc.

    I guess this time Chevy wants to get some marketing punch out of their efforts.

    My hats off to Chevy for getting such great mileage out of an engine that has substantially more displacement AND more horsepower than its competition.

    BTW I'm not sure the improvements will show up in "real world" driving. I was getting 3-4 MORE mpg than the rating with mostly long trip freeway driving with my '06 Cobalt manual transmission - and I SELDOM get more than the EPA freeway rating (the only other car like that for me was the VW Golf). I could easily hit 37 mpg on drives from San Francisco to Yosemite (despite the hills) and later in its life when I was driving more aggressively on my freeway commute still got 34 mpg.

    Now that the Cobalt is "tweaked" to deliver EPA numbers, I bet the reverse will be true, most people won't get the EPA numbers. Of course that's the way it already is with most companies, so now it's a level playing field for Chevy.

    Still, maybe one day I'll get another Cobalt and see what it can deliver on a long drive to Yosemite or L.A. ....
  • bobokadofbobokadof Member Posts: 9
    due to recent gas prices i've been driving about 55mph on the highway. on a day with great weather the fuel ECON readout says i get 40~41 MPG with E10 at that. anyone else get that high of readout?
  • gerald41gerald41 Member Posts: 37
    I've had on 06 Cobalt and now have an '08. I'm in my 50's and drive very conservative. The Cobalts highway milage is spectacular. On the hwy I average at 55 mph 36-38 mpg, The problem is around town I notice my '08 is not even getting what my '06 got. I average around 21, not to good considering my '04 impala which is a 6 and much bigger is getting 18 mpg. Just for the record even my Impala gets 33 on the Hwy. I love the Cobalt but do feel for it's engine size and cars weight should be getting better around town than 21.
  • gtodavegtodave Member Posts: 12
    my daughter has an '07 automatic, and drives around town and goes 10 miles each way to school on back roads. she has a leadfoot as far as accelerating from a stop goes. i checked her dic and it says 28 mpg. my xfe has 2000 miles on it now and with my combination of highway and around town i'm getting 33.2 and it's still going up. i do notice driving around town does pull my mileage down a bit but it always goes back up shortly after hitting the highway.
  • poncho167poncho167 Member Posts: 1,178
    You probably need a few more miles before the mileage will start to improve. Around town mileage with a Cobalt should be at least 25 mpg.
  • uplanderguyuplanderguy Member Posts: 16,860
    I picked up my new XFE day before yesterday. I wanted a four-door and had to have ABS, which made the car hard-to-find. I live in a suburb of Akron, OH and they had to get the car at a dealer in Indianapolis, and that dealer had only had it eight days! So far, I'm delighted with the car compared to my '02 Cavalier 5-speed with 112K miles...I liked that car, but this one rides so much nicer. We're loving the satellite radio too. Haven't had a chance to check the mileage yet. The rebates are terrific on the Cobalt right now and through the end of the month I'm told, plus I had $2K credit from my GM Card. I paid less for this car than I did for my similarly-equipped Cavalier, six years ago.

    A small side benefit of this car, although the manual trans is built in Italy (!), the car is built in Lordstown, OH, the engine is built in the U.S., and the domestic parts content is 80%, among the top ten of all cars built in the U.S. And some folks say you can't build a good domestic subcompact that is reasonably-priced. Phooey, I say!

    Bill
    2024 Chevrolet Corvette Stingray 2LT; 2019 Chevrolet Equinox LT; 2015 Chevrolet Cruze LS
  • poncho167poncho167 Member Posts: 1,178
    A lot of people live in the past and have these stubborn perceptions about American cars that have been competitive in every way for over 10-years. Hard to really understand why people have this fascination of supporting foreign companies especially when there is a comparative choice and a bad U.S. economy.

    My friends family always has a Lexus in the family which he admits is for his image. I don't find that thought very attractive to me and don't find over paying very impressive. Luckily he also always has an American brand car or two as well, usually GM.
  • tsjaytsjay Member Posts: 4,591
    Hi, Folks.

    I just bought a brand new 08 Cobalt LS four door sedan with the auto tranny and the 2.2 L engine today, and I am anxious to see what kind of mileage I will get with it on my commute. My drive is 24 miles one way, and it is 90% highway driving.

    I bought the last Cobalt on the dealer's lot, and it sounds like I was lucky to get it. They have sold like hot cakes, I am told.

    My main motive in buying this car was for fuel economy. I hope I won't be disappointed. I would like to believe that I can get 35 MPG on that commute that I described above. I've read a few posts in here, and it seems like I am not out of line with that expectation, right?

    Tom
  • okko1okko1 Member Posts: 327
    give it some time to break in and i can tell you that my econo meter is showing 30.5 and mine is not stock by any means. good luck with your balt, i am very pleased with mine. there are a lot of owners here ask what you will. :)
  • micwebmicweb Member Posts: 1,617
    30 mpg is a good number for any automatic. The Cobalt delivers top mileage, but automatics tend to drop the mileage by 3-5 mpg compared to stick shifts. I usually get better than EPA with stick shifts, and worse than EPA with automatics.

    If you don't get 30 mpg on your commute, make sure you are taking your foot off the gas early when you see a need to slow down, to maximize your coasting, and don't get in the habit of tailgating, you have to constantly ride the accelerator and brakes to maintain your distance and that kills gas mileage.

    Finally, keep in mind that city driving is like salt in water - it doesn't take much to ruin the mileage.
  • tsjaytsjay Member Posts: 4,591
    Thanks for the replies, okko1 and micweb.

    We'll see how she does.

    Now, micweb, I don't tailgate! I call it bump drafting. :)

    Seriously, you make a good point about tailgating not being good for gas mileage, but it can have far more dangerous consequences that reduing fuel economy, as I'm sure you know.

    I don't tailgate, and it really makes me uncomfortable when someone does it to me.

    Thanks again, Peeps. I'll be sure and post when I get some miles on that car and let you guys know what kind of MPG I am getting.

    Tom
  • gtodavegtodave Member Posts: 12
    car just hit the 3000 mile mark. so far without the air on and about 80% highway, 70mph and 20% around town it's around 33.6 mpg.
  • tsjaytsjay Member Posts: 4,591
    Now THAT sounds good! Hope mine will do that.

    I will be using that A/C BIG TIME, so that will work against me. I'll be sure to keep it on recirc, so that should keep the compressor from working as hard.

    Tom
  • tsjaytsjay Member Posts: 4,591
    OK, I filled up Thursday after work and reset my trip odometer, so that I can manually calculate gas mileage next time I fill up. I also reset the mileage computer when I filled up.

    I still have not filled the tank again, but the onboard computer is telling me that I have averaged 29.2 MPG so far, after having driven the car home from work Thursday, to work and back Friday, and to work and back today, plus the lunchtime trips for something to eat.

    I have used the A/C constantly since taking delivery of the car last Tuesday.

    I'll post when I fill up again and manually calculate my mileage.

    Tom
  • Karen_SKaren_S Member Posts: 5,092
    Surprised, but glad to see you here!

    Don't tell me you got rid of Thelma Jane. :surprise:
  • tsjaytsjay Member Posts: 4,591
    Are you stalking me? :)

    Hi, Karen!

    No, I have NOT sold Thelma Jane. She is sitting in my garage right now, waiting for our next wheelin' trip. She has pretty much become a "trail queen" now.

    She is beat up, banged up, scratched up, and filthy, which is the way Jeeps like to be. I only drive her down to Turkey Bay to go wheelin' and back home again; that's the only use she gets nowadays.

    I needed some reliable and fuel efficient transportation for getting to and from work, and that is why I bought the Cobalt. Think I am going to be pretty happy with it.

    Tomster
  • tsjaytsjay Member Posts: 4,591
    I only got 26.9 MPG by manual calculation: 223.3 miles driven on 8.295 gallons of gas. The on board computer was showing 27.8 for overall average, almost one mile per gallon higher than the calculated mileage.

    I should have been more realistic in my expectations, since my "highway driving" is not interstate cruising. I use two lane back roads that have hills and curves, and I often have to slow down for traffic, then speed back up after passing. I encounter three stop signs during the 20 mile portion of my commute that I call "highway driving" before getting into city driving for the last three or four miles of the trip.

    I also have that lunchtime excursion every day that puts 8 "semi-city" miles on my car. (I call it "semi-city" driving, because I do get on a divided highway for a couple miles each way.) As someone mentioned, it doesn't take much city driving to pull the overall average way down.

    I still like the little car just fine, and I know the mileage will pick up a little when she gets broken-in better. She only has 300 miles on her now.

    Tom
  • gtodavegtodave Member Posts: 12
    i have been using the air all the time now since it's unbelievably hot and humid and have also driven around town more than usual lately. at 3700 miles 32.2 and i haven't had my highway miles yet. if you want to record your gas mileage yourself you should get your gas at the same pump and at the same time of day you took your mileage. with 300 miles and not broken in, passing people and running the air without getting any true freeway miles you're really gonna need to be a toe tapper for a while to get the mileage up, but it will go up. my highway miles always bring up my mileage after riding around town all weekend. i shift @ 2500 rpm, usually that's when the light comes on, and i take my time getting up to speed, usually 70mph.
  • micwebmicweb Member Posts: 1,617
    The Cobalt has a MPG indicator in the DIC (digital information center). I used to play with resetting the MPG indicator just before a freeway trip and was amazed how high the numbers could go. Then if you go back to your regular commute they sink down a lot as you mix in the city driving.

    Try it. Before you take your lunch, zero out the MPG indicator and see what it tells you after the trip. Conversely, next time you take a road trip, wait until you are up to speed then reset it. If you are cruising at 70mph I would expect to see about 34 mpg. But remember the actual slow and go and surface street driving and bumper to bumper freeway traffic can really slow it down.

    I have to admit I have seen a tremendous generational shift in terms of attitudes toward the accelerator pedal and gas mileage. In the 50's and 60's I grew up under the influence of driving with a very smooth, gentle foot on the throttle, no more than 1/4 of the way down. The other day I had a conversation with a young coworker who said her car is small and she has to floor it all the time to get good pickup. And then people wonder where the mileage went - it's not only her, I'm the last one off the green light line, last to come up to speed, but usually seem to catch up with the "jack rabbit starters" at the next stop light.
  • tsjaytsjay Member Posts: 4,591
    Micweb:

    Thanks for the reply.

    You do know that there is a setting on the DIC for instant MPG instead of average MPG, right? I go to that position sometimes and am amazed by the highs and lows.

    I have the option of running on parkways on the way to and from work, instead of using the two lane country roads, but that route adds a couple miles each way to my commute. I was using the parkway route on the way to work this AM and had the DIC set to read instant mileage. I was cruising along at a steady 70 MPH, and the DIC readout varied tremendously, based on the lay of the land. The slightest incline would send the reading down, and the slightest downhill run would send the reading way up.

    Like you, I try to avoid jack rabbit starts, and in town I like to get off the gas long before the intersection when I know I am going to get caught by the light or by the traffic that was waiting for the light to change. That way, I can almost always avoid having to come to a stop and then have to go back up through the gears to get back up to speed. Saves on the brakes, too, that way.

    Tom
  • tsjaytsjay Member Posts: 4,591
    Thanks, gtodave.

    I assume you have a GTO or had one in the past, since you are using that username?

    I LOVE GTO's, especially the 66 Goat. My best bud in high school had a silver gray 66 GTO that was drop dead gorgeous! It had the 389 with four barrel carb and auto tranny.

    I sure hope my Cobalt will get 32.2, like yours is doing!

    Tom
  • micwebmicweb Member Posts: 1,617
    I didn't find the instantaneous read out helpful when driving. It is TOO instantaneous. I get a better indication of freeway mileage by resetting the regular indicator when starting a freeway drive and giving it time to "settle down." You can do the same thing before a set of city errands. Or zero it out at every refill, which I used to do, to compare the DIC to the logged mileage - my DIC was 1.5 mpg optimistic.

    Your driving habits match mine. You should be getting great gas mileage!
  • gtodavegtodave Member Posts: 12
    working on a '72 gto right now. i grew up around them so was always partial to them. wouldn't mind having an '07 either! btw, i never reset my mpg in the dic. i'm more interested in what my mileage is over time verses a short snapshot. i have watched the instant mpg and with the wild swings it takes i just leave the dic alone.
  • tsjaytsjay Member Posts: 4,591
    Yeah, after I posted, I thought about how wild the "instant" MPG readings are. They really are useless, aren't they?

    I see what you mean about resetting the average MPG computer for different driving conditions. I might give that a try sometime. Thanks for the idea.

    For now, I want to just reset that puppy when I fill up the tank, so that I can see how the DIC average MPG correlates with the manual calculation that is based on miles driven since the last fill-up divided by the gallons required to fill the tank.

    Take care. Happy driving.

    Tom
  • tsjaytsjay Member Posts: 4,591
    Guess we shouldn't get too far off topic here, Dave, but what was the last production year for the Goat, before they came back on the scene in 2004? It WAS 2004 when they offered a car called a GTO again, wasn't it?

    I'm sorry, but I just cannot get too excited about the latest generation of GTOs.

    The GTOs that I love are from the 60s, with the 66 being my all time favorite, followed very closely by the 67, which is very similar in styling to the 66, of course.

    Tom
  • tsjaytsjay Member Posts: 4,591
    Micweb:

    I decided to go ahead and try what you suggested, and I set my average MPG computer to 0 this AM as I was leaving for work.

    By the time I got into the edge of the town where I work, about 22 miles from my home, I was getting a reading of 34.3 MPG. By the time I parked at work, about two miles later, the readout was 33.7.

    I will try to remember to reset that puppy to 0 when I leave to go to lunch today, and I will be able to see how low the reading goes for in town driving.

    I'll bet if I got that little Cobalt out on the Interstate for a long trip, I would get 37 or 38 MPG!

    Thanks for the good idea, Micweb.

    Tom
  • tsjaytsjay Member Posts: 4,591
    21.8

    Sticker said 22 City, so that was pretty close.

    Micweb, that was sure a cool idea you had about resetting the computer for different driving conditions.

    I set it back to 0 for my trip home.

    Gas was $3.899 here (western KY) when I went to lunch, and it was $3.959 when I came back from lunch. This was at Kroger's, which is always in line with the other stations around here.

    Tom
  • micwebmicweb Member Posts: 1,617
    Cool. Interesting experiment - that 22 mpg of city, even though short in miles, will probably really drag down the highway mpg. I guess tomorrow or the next day you can re-set the DIC in the morning before you leave for work and see what impact the mid-day drive has on your commute mileage.

    Sometimes people get mad at their cars for bad mileage when freeway mileage is actually great - they should be mad, instead, at city congestion and poorly timed stoplights.
  • tsjaytsjay Member Posts: 4,591
    Mic:

    I will do just that. I'll reset to zero tomorrow morning and then see what it reads when I get home tomorrow evening. This will show me what the MPG for my typical day's driving will be.

    The only snag might be that I may not drive my car to lunch tomorrow, since we sort of have a tradition of four of us going out together for lunch on Fridays, and we drive one of other guy's cars. If that's what happens, though, that would be a good way to see what MPG my commute alone would give me, with no lunchtime trip.

    I could do this again Monday, and then I would have a round trip to work WITH the lunchtime trip included for a comparison.

    Tom
  • micwebmicweb Member Posts: 1,617
    From my first fillup (coupe, stick shift, '06):

    4/8/06 (drive to Yosemite) DIC says 36, based on odometer/gas receipt 33.62
    36.47 during Yose drive
    35.56 after return from Yosemite and drive to work.
    33 mile work commute cycle with minimal surface streets:
    33.42; DIC says 36.0
    32.96; DIC says 35.2
    33.19; DIC says 35.5
    36.77 (trip to LA)
    34.47; DIC says 37.6
    35.73; DIC says 38.0
    commute
    35.07; DIC 36.8
    34.26; DIC 36.8
    39.17; DIC 39.2 (drive to Yosemite again)
    34.85; DIC 38.5
    36.0; DIC 38.0

    Towards the end of my ownership at around 10,000 miles or so, I was getting between 33 and 34 on my commute

    Theoretically your XFE should get higher mileage (especially since you don't have to deal with 10% ethanol as we have out here), but I think the Cobalt always gave good mileage, Chevy might just have tinkered to match to the EPA test cycle better.

    For comparison, here are some figures from my ownership of an '07 Yaris liftback with 5 speed:

    38.53 (I guess the dealer didn't shortchange me on the full tank of gas)
    35.92
    36.14 (drove to LA)
    36.37
    36.15
    36.82
    37.51
    37.40
    37.33
    38.27
    38.14
    37.72
    36.43
    37.09
    37.36
    38.27

    I keep track of mileage by printing out a gas receipt with every fill-up, and noting the miles from my odometer (I reset the trip portion of the odometer on each fillup).

    I think most tank to tank variations are due to "fill variations" since as much as I try to fill up consistently, I think there are inevitable variations. I think its wishful thinking to think that, on the same route, one tank got 2 or 3 mpg better than another - fill variations can account for that. This is why you need to track over a period of time (5 tanks under the same seasonal conditions?) and average.

    My trips to Yosemite produce great miles since, despite climbing to elevation and then descending, the lower overall "country road" speeds more than make up for the inefficiency of climbing (I also think I recoup most of the extra energy spent climbing up when I return back down).

    Driving to Los Angeles (from the Bay Area) isn't the kind of "freeway driving" high mileage fans think about when it comes to high mileage. Speeds can run in excess of 80 mph and you often need aircon. The car to be hit worst by my LA trips was the VW Golf, of which I had two 5 speed versions, an '01 and '04. Both dropped from the 30 mpg I got commuting to only 26 mpg. My Dodge Caliber with 5 speed only dropped from 32 mpg commuting (yes, I was surprised by how well the Caliber did too) to 30 mpg on the interstate run. Generally I get 2 mpg better on my commute, despite the surface component and some slow and go traffic, than on high speed runs to LA. I think 70 or 75 is the magic number; above those speeds, you pay a stiff penalty in fuel economy.
  • gtodavegtodave Member Posts: 12
    gto production was '64-'74 with '72 being the last year you would recognize as a real deal. i favor the '65 and '70 gto's. i like the '66, best year for the 6-pack and i like the tail lights but the '67 never did much for me, no more 3-2's and alot of the new auto hydromatic that year, i prefer the 4-speeds...................
  • tsjaytsjay Member Posts: 4,591
    Mic:

    You have sure owned a lot of cars! :)

    I have no room to talk, since I used to change cars as often as most people change underwear.

    Like you, I calculate gas mileage each fill up by noting the miles on the trip odometer, which I reset at each fill-up, and dividing by the number of gallons purchased. I also try to be careful to fill to the same level each time, but, like you, I realize that there will be variation. You are absolutely right about the need to average several tanks of gas together for a true estimate of MPG.

    That DIC seems to always overestimate the MPG in your case, doesn't it? I guess they all do that?

    Tom
  • tsjaytsjay Member Posts: 4,591
    Those were the good old days, Dave.

    Little GTO, you're really lookin' fine,
    Three dueces and four speed, and 389

    Wah,wah, wah, wah, wah ,wah, wah


    Tom
  • micwebmicweb Member Posts: 1,617
    Yeah, the DIC is optimistic - probably within SAE spec, if there is one, but I have yet to hear of anyone reporting MORE gas mileage than the DIC indicates.

    I think I'm going to have to slow down my car swapping ways. There are inevitable lost costs (like sales tax here in the semi-elitist state of California - not credit for the tax paid on our trade-ins) and with gas going sky high, the easiest way to balance that increased cost is to reduce the costs of ownership by holding onto them longer. So I think I will bump my trade in mileage from the usual 10k miles to 30 k, still leaving some warranty left to enhance the trade-in value.

    (Although I would love to trade in the Fit on the new Fit, the 2009 is the first upgrade for this model, which was "long in the tooth" when we got it here in the states.)
  • tsjaytsjay Member Posts: 4,591
    I got 28.5 MPG for my second tank of gas with the Cobalt. That's an improvement over the 26.9 MPG on the first tank, but still less than I had orginally hoped for.

    They are supposed to get my back glass leak fixed this afternoon, but the glass guy has not yet shown up. The service manager is pretty put out with the glass guy, because he has a history of not showing up when he is supposed to. We only have one guy in town that does that work, though, so we are at his mercy.

    Tom
  • gtodavegtodave Member Posts: 12
    i see gm has turned over the owner center to yahoo. i use it to keep track of my maintenance performed. anything you do you can add and what the dealer does shows up. i've been using this for years, but out with the old and in with the new i guess.

    GM Owner Center powered by Yahoo
  • steve333steve333 Member Posts: 201
    And they dont have one piece of my car info correct-wrong year, wrong zipcode, wrong preferred dealer, etc. Try to email them and it freezes.
    One more source of irritiation I most definitely did mnot need.
    Thanks GM :sick:
  • thegraduatethegraduate Member Posts: 9,731
    Other car companies have similar websites (ex: Honda OwnerLink)
  • steve333steve333 Member Posts: 201
    I've been signed up with GM Link for a few years, the problem is with the switch over to yahoo. I emailed them and they are aware of the problem.
  • gtodavegtodave Member Posts: 12
    at 5000 miles dic says 34.7. i run the a/c about half the time and have been driving abouy 85% highway. i just changed the oil with mobile one synthetic even though the oil life was at 58%. now that it has synthetic in it i think i'll wait for the dic to tell me when to change the oil....
  • poncho167poncho167 Member Posts: 1,178
    I would probably go with the indicator myself. Studies have shown that these meters are pretty good otherwise manufactures would probably have a lot of warranty issues. The manufactures have faith in these meters especially with the quality engine oils used nowaday.
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