Not-so-good Mileage.Please Help
NEWS
 

  1. Welcome to Chevy Cruze Forum : Chevrolet Cruze Forums General discussion forum for Chevy Cruze

    Welcome to Chevy Cruze Forum : Chevrolet Cruze Forums - a website dedicated to all things Chevy Cruze.

    You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, Join Chevy Cruze Forum : Chevrolet Cruze Forums today!
     
Page 1 of 9 123 ... LastLast
Results 1 to 10 of 82
Like Tree9Likes

Thread: Not-so-good Mileage.Please Help

  1. #1
    Learning about my Cruze ZachFools's Avatar
    Join Date
    Jan 2013
    Location
    Sherman tx
    Posts
    54

    Thumbs down Not-so-good Mileage.Please Help

    Hey guys,I've been browsing the forums since I got my 2012 cruze ls back in november,but waited til now to join since I finally can ask my question,and looking forward to learning more about my cruze.

    Ok,so I work at a Chevrolet dealership,i'm a car lot manager (Would never sell cars,blech),and I decided why not buy my vehichle where I work,right?So I did.
    I have a 2012 Chevrolet Cruze LS base model,1.8 with the 6-speed automatic.

    Got the vehicle when it only had 112 Miles,It now has 2734 miles.From the day I started driving it to this day,I have yet to break and average of 23 MPG,and I fill up to full tank everytime im on E.In all reality I only drive from work and back since the dang hours are so long (10hrs/day,6 days/week!)Which is 20 miles on the spot there and back (Total of 40 miles a day).36 of those total miles consist of nothing but highway,no heavy traffic what so ever.So I dont see why I havnt even seen a slight improvement in MPG?

    And get this,since I'm the car lot manager,I can move any car I want.First I tried asking the salesman why its so bad,some say breakin 5000 miles will do it,and some are just flat out confused why it hasnt changed a bit with 3000 miles almost.

    So I decided to take a same exact model cruze for a spin on my lunch,It only had 500 miles on it (Its a demo),I drove 46 miles,and no matter how I drove it,the average didnt drop any lower than 30mpgs!!
    So SURELY there is something buggy about my cruze??

    I took it to service,they did a calibration (Firmware?) update,and put all my tires to 35psi(Calls for all to be 35).
    And still...No difference???After that,they said theres nothing else they could do?BULL.Surely theres some reason why its so bad?Theres GOTTA BE a reason why.

    I'm trying to be as elaborate as possible that way I can get an answer pretty prompt, because the whole reason I finally decided to commit to payments is for the at least 35 mpg 27mpg avg im not getting.lol.

    If you guys could help with any advice or anything id really appreciate it!!

    PS:When I accelerate,im a snail and keep my foot on the pedal pretty stable,yet another reason Im stumped,I dont speed or anything,sometimes I even try going 60 on the hwy,but its pointless seeing as though the moment I let off I decelerate like crazy!
    Thanks in advance!
    "Facing a greater challenge, only will make the accomplishment ever better."
    ~2013 Chevrolet Cruze Lt 1.4 turbo w/ 6-spd manual shift~

  2. Remove Advertisements
    Chevy Cruze Forum
    Advertisements
     

  3. #2
    Driver's Ed
    Join Date
    Jan 2012
    Posts
    33
    1.4 6-spd Manual saves more gas.. should have got that one

  4. #3
    Learning about my Cruze ZachFools's Avatar
    Join Date
    Jan 2013
    Location
    Sherman tx
    Posts
    54
    Yeah I know,but at the time we didnt have any in stock and also we were bringing in 13 models and pushin the twelves out..Not to mention based on my credit I was lucky to even get in what I have,but since theres no turning back I have to make due now,so I really need to figure this problem out
    "Facing a greater challenge, only will make the accomplishment ever better."
    ~2013 Chevrolet Cruze Lt 1.4 turbo w/ 6-spd manual shift~

  5. #4
    Duke of Oil

    XtremeRevolution's Avatar
    Join Date
    Jan 2012
    Location
    Where the stars and stripes and eagles fly.
    Posts
    12,015
    Pull the spark plugs and check the gaps. Also check for discoloration (they should all be around the same). A lot of these Cruzes came with severely under-gapped plugs during certain production periods. This caused throttle lag/hesitation and poor fuel economy. Re-gap them to 0.035". If you have your dealership do it, make sure they adjust them to 0.035", NOT to 0.028" as is recommended in the service manual.

    If you can, record the old gaps and post them here. If this is the issue, which it might be, you'll have at least one spark plug that is severely under-gapped. We have a tutorial in the How-To Library section that shows you how to pull the plugs yourself. It's very, very easy with this car.

    If that's not the problem, then I have no idea what else it could be. GM would have to get involved. Check the plugs first.
    Amsoil Products Info, Ordering, & CruzeTalk.com Discounts


    XtremeRevolution & Co. Mobile Audio Parts :: XtremeRevolution.net



    "When freedom is at odds with government policy, one of two things eventually happens: Either freedom is crushed, or political leaders are forced out in disgrace and replaced with guardians of individual liberty."

    "...the Supreme Court has ruled that the right to keep and bear arms exists independently of the Second Amendment...the Bill of Rights is a reminder to the government, not [an] authorization..."

  6. #5
    Learning about my Cruze ZachFools's Avatar
    Join Date
    Jan 2013
    Location
    Sherman tx
    Posts
    54
    Thanks for the reply!Yeah I know how to pull plugs and what not.Ill check em as soon as it stops snowing here and record the old gaps.
    It does make sense,since it seems like it decelerates ridiculously quick as well.
    So the cruze calls for .028",but I should put them at .035"?
    Hopefully this could be the problem,I cant think of what else it could be either.Im gonna do it sometime later today
    "Facing a greater challenge, only will make the accomplishment ever better."
    ~2013 Chevrolet Cruze Lt 1.4 turbo w/ 6-spd manual shift~

  7. #6
    Administrator

    obermd's Avatar
    Join Date
    Mar 2012
    Location
    Denver
    Posts
    13,363
    OP has an LS and the service manual has always said 0.028" for this engine. Go with 0.028" on the spark plug gap.

    You're basically getting the city EPA estimate. If your car has an average speed indicator, can you post that value. This will help us determine if you're spending a lot of time at slower speeds than you realize. Also, have you tried the manual-matic mode of the transmission. My understanding is that this mode really helps fuel economy as it prevents the car from aggressively downshifting while coasting.

    Also, don't idle to warm up the car. The Cruze simply doesn't have large enough of an engine for idling to warm up the car anyway.

    2012 ECO MT - Black Granite/Cloth; 814 mile range; Bluetooth Stereo AUX; OEM Fogs w/Chrome Covers; GM Spare tire; VG Shark Fin
    2010 Mit Lancer GT MT (traded for ECO @31K miles)
    2002 Pont Montana AWD (traded for 2012 LS @182K miles)
    1990 Pont Transport (traded for Montana @240K miles)
    1986 Fiero GT MT (traded for Transport)
    1985 Fiero 2M4 MT (traded for Fiero GT @8K miles)

  8. #7
    Off-Road Champion Patman's Avatar
    Join Date
    May 2011
    Location
    Cincinnati, Oh
    Posts
    2,527
    Kinda sounds like it is getting stuck in a lower gear. Does the car shift all the way up to 6th gear? What are the RPMS when driving? Just a thought. Since the car is so quiet, you may not notice that the RPMs are high.

  9. #8
    World Rally Champion
    spacedout's Avatar
    Join Date
    Dec 2010
    Location
    SW Wisconsin
    Posts
    4,662
    Quote Originally Posted by Patman View Post
    Kinda sounds like it is getting stuck in a lower gear. Does the car shift all the way up to 6th gear? What are the RPMS when driving? Just a thought. Since the car is so quiet, you may not notice that the RPMs are high.
    he could put the shifter in manual mode & see what gear he is in at any moment.

    Lifetime: 10.6 cents per mile @ $3.73 average price over 54K miles

  10. #9
    Learning about my Cruze ZachFools's Avatar
    Join Date
    Jan 2013
    Location
    Sherman tx
    Posts
    54
    Ok,I was about to re gap my plugs?So which gap will for sure help my milelage?
    And I havnt tried using the manual shifter really all that much.
    My "Average" speed says im going 60 for the most part when I fill up
    "Facing a greater challenge, only will make the accomplishment ever better."
    ~2013 Chevrolet Cruze Lt 1.4 turbo w/ 6-spd manual shift~

  11. #10
    Administrator

    obermd's Avatar
    Join Date
    Mar 2012
    Location
    Denver
    Posts
    13,363
    Go with the 0.028". That is the gap that has always been listed for the 1.8 engine in the LS.

    Average speed should be lower - I drive 30 miles each way with most of it at 55 or 65 MPH and my average speed is in the low to mid 40s on most fill ups. I do agree with Patman that it sounds like your car may not be shifting up. What is your RPM at 60 MPH?

    2012 ECO MT - Black Granite/Cloth; 814 mile range; Bluetooth Stereo AUX; OEM Fogs w/Chrome Covers; GM Spare tire; VG Shark Fin
    2010 Mit Lancer GT MT (traded for ECO @31K miles)
    2002 Pont Montana AWD (traded for 2012 LS @182K miles)
    1990 Pont Transport (traded for Montana @240K miles)
    1986 Fiero GT MT (traded for Transport)
    1985 Fiero 2M4 MT (traded for Fiero GT @8K miles)

  12. Remove Advertisements
    Chevy Cruze Forum
    Advertisements
     

Page 1 of 9 123 ... LastLast

Similar Threads

  1. The cruze is no good
    By Keylo in forum New to CruzeTalk? Start here!
    Replies: 89
    Last Post: 07-11-2013, 09:07 PM
  2. good numbers
    By neirfin in forum Fuel Economy
    Replies: 13
    Last Post: 11-05-2012, 04:26 PM
  3. So far so good
    By Shonn84 in forum New to CruzeTalk? Start here!
    Replies: 9
    Last Post: 10-22-2012, 01:14 PM
  4. Not as good MPG as I want....
    By STUDLEE in forum Fuel Economy
    Replies: 60
    Last Post: 12-03-2011, 04:38 PM
  5. Looking for a Good LTZ rim
    By DLuck in forum Wheels, Tires, Brakes, & Suspension
    Replies: 0
    Last Post: 09-02-2011, 07:23 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBadvanced CMPS v4.1.2