2011 Sonata GLS - Poor Gas Mileage (resolved)

Discussion in 'Start Your Journey Here' started by balshelmtov, Feb 10, 2011.

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Your 2011 Sonata GLS mpg relative to EPA estimates performs:

  1. At about the EPA rated mpg.

    16.7%
  2. Somewhat above the EPA rated mpg.

    16.7%
  3. Somewhat below the EPA rated mpg.

    0 vote(s)
    0.0%
  4. Far above (25% or greater) the EPA rated mpg.

    50.0%
  5. Far below (25% or greater) the EPA rated mpg.

    16.7%
  1. balshelmtov

    balshelmtov 2011 Sonata GLS

    Re: 2011 Sonata GLS HORRIBLE Gas Mileage

    If the offer is still open, I'd love to take you up on it.
     
  2. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Re: 2011 Sonata GLS - Poor Gas Mileage

    Hi Balshelmtov:

    I almost cringed when I saw you replied knowing I was going to have to go into the mod panels and... With your last, now you are talking sensibly!

    Enjoy Chris' help as he will get to the bottom of this. And he will probably have you laughing about some goofy Long Island incident or other while running through his own battery of driving segments and tests.

    Wayne
     
  3. balshelmtov

    balshelmtov 2011 Sonata GLS

    Re: 2011 Sonata GLS - Poor Gas Mileage

    I look forward to meeting him and getting to the bottom of this.
     
  4. ILAveo

    ILAveo Well-Known Member

    Re: 2011 Sonata GLS HORRIBLE Gas Mileage

    I don't know that you would think arbitration taking Hyundai's side would be reasonable, but that also would resolve your problem.

    I've seen companies walk away from customers who push too hard, particularly ones who accuse employees of lying or fraud. If they are forced companies usually will choose a valued employee over a troublesome customer. I've been on both sides of those sorts of disputes (usually involving pavement, not cars)--generally both sides leave the settlement hearing dissatisfied.

    Sadly it seems unlikely that the dealership would put his best tech on your problem once it looks like it's headed to arbitration. It would've been ideal to suggest that the dealer use a second Sonata to benchmark conditions to document the extent of the problem. Fortunately Chris would be able to do a side-by-side comparison.
     
  5. phoebeisis

    phoebeisis Well-Known Member

    Re: 2011 Sonata GLS - Poor Gas Mileage

    Good idea.

    Your car-warm engine- should deliver~ 40 mpg on a level highway by just setting the CC to 62 mph and pointing it.

    I'm really curious to see these results.
    Hyundai has very good QC so it is rare for a significant defect to slip thru, but it can happen.
    Luck
    Charlie
     
  6. KittyBoodles

    KittyBoodles Ferocious FeLion

    Re: 2011 Sonata GLS HORRIBLE Gas Mileage


    Agreed. I've also seen companies stop responding directly to the person who makes claims to bring a suit against them, and only continue though their legal counsel. I don't know what would be done in this specific situation, but - it could happen.
     
  7. MaxxMPG

    MaxxMPG Hasta Lavista AAA-Vee Von't Be Bach

    Re: 2011 Sonata GLS - Poor Gas Mileage

    I contacted Balshemtov earlier to see if we can get together for some diagnostic drive time.

    Below is a portion of what I wrote, and I wanted to share it here because I think it is worth a read. The information within may contain some information we can share with others we know who may be disappointed in the fuel economy of their daily driver. The fact is that poor fuel economy is one of the most common complaints of new vehicle owners. The realities of today's traffic environment make Beating the EPA a real challenge. But our vehicles will offer some startling capabilities if we are willing to explore and exploit what is baked in and already available to anyone who really wants dramatically better fuel economy.

     
  8. Blackbelt

    Blackbelt Well-Known Member

    Re: 2011 Sonata GLS - Poor Gas Mileage

    Good points Chris. It reminded me of something i had long forgotten, but is still applicable today.
    I purchased a 1/2 ton dodge van back in the late 70's. It was an early 70's model, and it had a 225 CID slant 6 with a 3 speed automatic. It belonged to an electrician customer of mine at the time, and he bought a new van and sold me this for $500.
    I bought the van and my wife and i customized the interior with insulation and carpet, and built a bed. Altogether, we added about 300 pounds of extra weight to the otherwise empty(2 seats) van.
    I was sorely disappointed in the gas mileage that van got. No matter how hard i tried, that thing wouldn't get any better than 14MPG. Most times, it averaged closer to 12. It was tuned perfectly, and ran fine.
    One day a guy i knew was having problems getting his van to start. It turns out it was just a little moisture in his distributor(gotta love WD40). Once i got him running again, we started talking about our vans. His was the same year as mine, but he had the full complement of seats in his, which as near as we could figure made his van about the same weight as mine. I asked him what he averaged in terms of mileage and he told me he usually got around 14, and usually around 18 on the highway. So what engine did he have that managed to spank my little 6 cylinder?

    A 440 CID 4Bbl V8:rolleyes::(:confused:
     
  9. SD3_Driver

    SD3_Driver Well-Known Member

    Re: 2011 Sonata GLS - Poor Gas Mileage

    well, what about a bad gauge??? help has been offered, you had nothing to lose, take it and go from there...
     
  10. Chuck

    Chuck just the messenger

    Re: 2011 Sonata GLS HORRIBLE Gas Mileage

    As you get into fuel economy, the list of variables can get very long. The newness of your car and the severe winter weather definitely need to be considered. The kind of storms in the news lately are not factored in the EPA estimates.
     
  11. KittyBoodles

    KittyBoodles Ferocious FeLion

    Re: 2011 Sonata GLS HORRIBLE Gas Mileage


    From experience I can also add in; tires - and not just psi - and wheel alignment.

    I get lower numbers with excellent snow/ice tires then with summer / nice wx tire... and tire wear (see alignment below) knocks those numbers down too...

    The alignment of the car - oh yes, it can affect it big time! I had one car that was out of alignment (not that bad either) but in the couple hundred miles or so it took me to get it to the shop cost me at least 4 mpg.

    Not to mention road type (clear/clean/dry vs gravel/high crowned/dirt) plus terrain (long, flat vs hilly/mountain)

    Also in my airplane, I get a huge lead on failing pumps, gears, seals, etc if I keep a real close eye on fuel consumption and my engine analyzer numbers. Even a new part can fail, and knowing what is normal helps.

    I'm also sure some of those bug shields and other things that people install alter the original configuration enough to change some numbers?
     
  12. KittyBoodles

    KittyBoodles Ferocious FeLion

    Re: 2011 Sonata GLS - Poor Gas Mileage

    Question - are there not also different additives to gasoline depending on your state?

    That could effect the numbers as well as just having one station that will give consistent lower numbers than other stations. (Which is why there are two stations here I will not use)

    ETA: found this link to explain what I meant: http://www.epa.gov/oms/rfgecon.htm winter/summer gas in regions, plus there is a chart there that shows what percent will be lost on certain conditions including roads, conditions, alignment, etc that is very interesting to see.
     
    Last edited: Feb 13, 2011
  13. phoebeisis

    phoebeisis Well-Known Member

    Re: 2011 Sonata GLS - Poor Gas Mileage

    Blackbelt brings to mind my late 70's experience-
    In respect to the slant 6 in a heavy vehicle.I bought a new a 1980 D100 long bed- $5200 out the door with a V8 318 and a 3 speed (or maybe 4 speed) on the floor.It got about 13 mpg city not much better hy.
    It was born with an off idle lean stumble common in those carb days, I love EFI.
    The only reason to buy the slant six in a truck was initial cost .I think the claimed hp was 100 vs 150 hp 225 vs 318 they were both SLOW SLOW.The slant 6 had been known to deliver decent mpg in cars.
    Nothing delivered decent full sized truck mpg in those days.Toyota mini trucks gave 24 mpg city MT.

    The Chevette was one of the few USA vehicles that would deliver 20+ mpg in those days.
    The Corolla cost about 1.75x($5500 vs $9000) but delivered the mpg.
    Sorry about Memory lane.

    Charlie
     
  14. sea urchin

    sea urchin New Member

    Re: 2011 Sonata GLS - Poor Gas Mileage

    Guys anyone has updates? I am getting the same numbers Mr. Balshelmtov is getting in my 2012 Sonata GLS.
     
  15. MaxxMPG

    MaxxMPG Hasta Lavista AAA-Vee Von't Be Bach

    Re: 2011 Sonata GLS - Poor Gas Mileage

    Read the resulting article The Sonata on Trial.
    I drove the car last Feb and demonstrated it can hit city EPA using techniques you will learn here.
    Read that article and then go to the home page here and click the link for Beating the EPA.

    Welcome to CleanMPG and feel free to ask questions - we're happy to help.
     
  16. sea urchin

    sea urchin New Member

    Re: 2011 Sonata GLS - Poor Gas Mileage

    Interesting trial but the thing is i am a very careful driver, almost never use an AC and i like to coast. When i use instant MPG reader it it shows all the time 25-50 because i press on gas and then slowly coast to the stop light. But average that i am getting is 14-12 and it seems like it is getting worse. When i got the car dealer filled it the display said that i had 373 miles until empty, i refilled the car yesterday and the number was low (i think 340)

    My car has around 400 miles on and i made an appointment with dealership for next Thursday.

    My question is this, should i cancel the appointment and wait until i get 600 miles or should i go, if so what should i ask them to look at?
     
  17. FSUspectra

    FSUspectra Practicing true conservatism!

    Re: 2011 Sonata GLS - Poor Gas Mileage

    Are you actually calculating your miles per gallon (taking the miles driven on tat tank and dividing it by the gallons pumped when you go to fill up? I do know these cars need to break in for about 3-5k miles before the mileage increases as well.

    Do you idle the car a lot?
     
  18. MaxxMPG

    MaxxMPG Hasta Lavista AAA-Vee Von't Be Bach

    Re: 2011 Sonata GLS - Poor Gas Mileage

    Tell us a little about your commute, or the conditions under which the car is used. Specifically, share the terrain (flat, hills, or mountains), general idea of speed limits and the lay of the land in terms of traffic lights and stop signs, and typical trip distances.

    For more detail, the average speed (in mph) indicated in the trip computer is helpful, as is the reading on the tach when the car upshifts.

    You can't guarantee beating the EPA by being "a careful driver" or "a slow driver" or by "driving like grandma", or any of the other self-descriptions used by drivers to say they drive easy to get better mileage. Throttle control and conservation of momentum (including light timing) are the two areas to target.

    Where are you located? A general idea of your location may shed some light on particularly troublesome traffic, terrain, or temperature that will make beating the EPA more of a challenge.
     
  19. sea urchin

    sea urchin New Member

    Re: 2011 Sonata GLS - Poor Gas Mileage

    I live in Brooklyn NY, so mostly city driving, lots of stops, lots of lights, mostly a flat road, average speed is probably 20 - 25MPH. My trips are short, 3-4 miles max, i basically use the car to visit relatives and supermarkets. I used it only once so far for a "trip" from Brooklyn to NJ with typical NYC highway driving.

    I decided to postpone the appointment by two weeks to see if anything will improve.

    That's is why i wanted to get in touch with the original poster to see where he stands 6-7 months later.
     
  20. MaxxMPG

    MaxxMPG Hasta Lavista AAA-Vee Von't Be Bach

    Re: 2011 Sonata GLS - Poor Gas Mileage

    Driving within Brooklyn won't get you anywhere close to the EPA city number. Average Brooklyn travel will get you roughly half the EPA city number, and with basic hypermiling techniques, 2/3 of EPA city. Only bringing out the heavy artillery - in the form of intermediate and advanced techniques practiced and perfected - will get you to (and beyond) city EPA.

    I too lost contact with the original poster, although he may respond if he is still subscribed to this thread. Driving his car, I was at 19.8mpg, and had hit EPA city until two long red-light cycles cut the average mpg (we were resetting it for each 5 mile trip). Whether or not the car is doing any better, the point of the article is that the driver can be optimized when the car and commute are fixed variables. If you are interested in improving fuel economy, you came to the right place.

    Your Sonata will deliver better fuel economy over time, with Hyundai engines typically taking several thousand miles to loosen up. But if you're in the low teens in measured fuel economy, the root cause is not the car. It's the traffic environment.
     

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