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Chevrolet Malibu MPG-Real World Numbers

1131416181923

Comments

  • paopao Posts: 1,867
    on the tires no comparison as I upgraded to an aftermarket 17 inch rim on my Maxx...michelins were the pilot sport A/S and the BFGs were g-force Supersport A/S as Im running a 225/45/17 tire... both sets were rated the same..I rotate at every oil change so that is about 5-7k and front end alignment check yearly......so dont know why the difference...

    as for the brakes...not sure of the brand...as had them done at Merchants Tire and my local mechanic...believe they both used a NAPA supplied pad...meeting OEM specs
  • e_net_ridere_net_rider Posts: 1,380
    On about 2500 miles I got 30MPG. It would not have been that good except that I travelled through states that had lower speed limits such as Indianna. There are long stretches of 60 MPH going the length of the state. If I'd been running about 70 to 75 the whole trip I'd guess no better than 28MPG. I'd guess only about 500# of passenger and luggage. I did add air to tires on the way up after an overnight where temps dropped below freezing. By the time we got back home temps had dropped enough that I did not have to let any out. I ran BP regular and maybe one tank of Shell.
    A few months later, still at over 50% oil life, I noted that when I passed 6K that engine seemed to start losing some pep and like maybe dropping a little on MPG for my local driving. My last fill was Chevron premium, wondering if that would make a difference. It does not seem to have effected performance but will know MPG at next fill. So I have to wonder if oil is losing some of its lubricity. I might change ahead of time and try synthetic.
  • dave8697dave8697 Posts: 1,479
    1LT with 4 cyl and 6 spd. Still new and not broken in. My mpg has been going up steadily since about 600 miles were on it. Last tank was a jump from 26.4 to 29.8. Used mostly for commute to work that is 6 miles city and 9 miles Interstate. Interstate is congested and narrows to two lanes in construction zone.
    Tried to check mpg yesterday but gas pump didn't auto shut off and spilled gas out on ground.
    Using DIC today, I got 25.0 avg mpg from my house to the on-ramp (11 mins). Then I reset it and it reached 41.0 mpg avg for the 9 miles on the interstate.
    The total commute to work is 32.6 mpg. It was 25.4 mpg when I first got the car. A very unexpected increase in just 1300 miles.
    Rounded off, DIC says I am getting the EPA hwy (33) on my 40% city driving commute. Warm weather, no a/c.
  • malexbumalexbu Posts: 169
    (1300 miles) Still new and not broken in.

    How will you know when it's "broken in"? When do you expect that to
    happen? (Doesn't your manual speak of 600 miles? Mine do...)

    Tried to check mpg yesterday but gas pump didn't auto shut off and
    spilled gas out on ground.


    Relying on a DIC's reading is a mistake, in my opinion, unless you are
    interested in a trend, not absolute numbers.

    DIC says I am getting the EPA hwy (33) on my 40% city driving commute

    Just don't trust it -- don't spill gas on the ground and make an
    honest computation yourself :-)
  • I PURCHASED A USED 2009 LTZ ON JANUARY 2 2010. THE VEHICLE HAD 17,400 MILES. THE VEHICLE ONLY AVERAGES ABOUT 15 TO 16 MPG HERE IN PITTSBURGH. ALSO, AT SPEEDS BETWEEN 15 AND 27 MPH, THE CAR WILL SEEM AS THOUGH IT SHIFTS INTO NEUTRAL FOR A INSTANT (VERY SHORT PERIOD OF TIME) AND THEN SEEM TO ADJUST BACK. I HAVE HAD THE CAR BACK AT THE DEALER TWICE AND THEY KEEP SAYING THERE IS NOTHING WRONG WITH IT. HAS ANYONE EXPERIENCE ANYTHING LIKE THIS. I AM REALLY DISAPPOINTED ABOUT THE MPG. THIS WAS ONE OF THE REASON I BOUGHT THE VEHICLE.
  • paopao Posts: 1,867
    do you have a 4 or 6 cyl?
  • gmcustsvcgmcustsvc Posts: 4,001
    Hello Lemonmalibu,
    Did you have the service tech ride with you in the vehicle so they could feel the shifting problem? What engine do you have in the vehicle? Thank you,
    Mariah GM Customer Service
  • dave8697dave8697 Posts: 1,479
    In the past, I noticed that gas mileage maxed out for me at 60000-80000 miles on a vehicle.

    If nowadays they are broken in at 600 miles, does that mean mpg peaks at 600 miles? What I mean by 'broken in' is that mpg hits max.

    The DIC was accurate to within .1 mpg for an entire tank of gas recently on avg mpg.
  • malexbumalexbu Posts: 169
    In my Bu's 05, I haven't noticed MPG improvements as I drove them more (30K on one, and 40K on the other now). Not that I am unhappy with what I was getting from the beginning :-)

    For my Bu's 05 DIC shows about 1.2 better MPG than it is in reality.
    06 Maxx DIC lies big time, adding about 2 MPG.

    And I hope you reset the DIC MPG meter at each fillup -- you do it, right?
  • phil53phil53 Posts: 54
    I'm guessing you have the 6A. Are you experiencing this when you lift off the throttle momentarily, then get back into it? I get that - at just about any speed. As for the mileage, I've never gotten quite that bad, but I do have the 4 cyl. Maybe you have the V6? That said, if I just use it to putz around town, I have gotten as low as 18 mpg. The other thing I find interesting is that, as I have put on more miles, my mileage has actually gone down a little. My current commute is 30 miles. 25 of those are on freeway/interstate and the traffic is not that bad. I'm averaging about 22 to 23 mpg.
  • Yes Mariah and I have even spoken on several occassions to GM Customer Service reps. Can you help me?
  • It is a 4 cyl. The Dealer also thought that I might have been lifting off the throttle momentarily. This is not the case. I can be driving at a steady pace with my foot stayed on the pedal and what I discribed happens on a continous basis. It is very frustrating.
  • gmcustsvcgmcustsvc Posts: 4,001
    Hello Lemonmalibu,
    I need to get some information from you in order to at your situation further. Can you please email me your VIN, current mileage, dealership and service request number if you have one? You can get my email by clicking on my name. Thank you,
    Mariah GM Customer Service
  • Mariah, I previously spoke to you via telephone. I will call you again to discuss the same issue listed above and that we also spoke about previously.
  • nomabunomabu Posts: 1
    Also called the no go mabu by my friends.

    We feel totally ripped off and even reading the forum posts by people happy with the malibu, I'm disapointed. I mean.. what' up with being ok with a lying odometer?

    At any rate, I'm lucky to get 15 mpg in town with this beast. And that's if I drive llike a granny- not that there is much choice with this car. If I drive like a granny on the highway, I MIGHT get 30 mpg.

    My last car was a honda accord with 225,00 miles on it, also a four speed. Got 35 in the city til the day I traded it in.

    Also the GPS, what freakin' did the voice recognition? I have to turn off my windshield wipers or they can't hear me?

    I also had to talk and talk to the people at onstar. They must live in a small town and assume I have time to chat before asking my directions. I'm in Chicago. Small talk can make me miss an exit. A garmon would be quicker than dealing with a varying degree of clarity and understanding issues.

    Also, the turn signals already broken and won't turn off automatically. yeesh.

    Malibu 2009 20000 miles on it. 4 cyl w/ useless automatic.
  • malexbumalexbu Posts: 169
    a lying odometer? In what post? :-) (I, for one, mentioned a lying MPG meter -- a big difference.)

    Otherwise, a very helpful post,thank you. (My 05 and 06 Bus have none of the 08+s "advanced features" and (the sedans) a perfect mileage. Very happy with them all so far.)
  • e_net_ridere_net_rider Posts: 1,380
    I made that same trip a couple of weeks ago. This time I got just over 32MPG and that includes some local driving and torturous jammed up freeway driving through Chicago, express lanes closed. It was stop and go for at least half hour.
    I also noted that the engine seemed to have a bit more power when using 89 or 93 octane.
  • Mariah, I just sent you an email. Please respond.
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