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Hyundai Accent Real World MPG

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  • sgopussgopus Posts: 7
    my first tank of gas I got 42 MPG, then didn't know I had to use at least midgrade gas, so next tank I got 27 MPG, now I'm using Midgrade and got 32MPG, next tank I will use supreme and see what happens.
  • sgopussgopus Posts: 7
    My factory radio is not satellite ready, is anybody aware of any issues if I get a different Radio that is satellite ready, ie will it require any special adapters etc..
    I will be having someone else do the install :confuse:
  • backybacky Twin CitiesPosts: 18,618
    Why do you think you need to use mid-grade gas? The Accent is designed to run on 87 octane.
  • sgopussgopus Posts: 7
    Cause I've tried the 87 and it runs better and gets better MPG on the 89
  • pulgopulgo Posts: 400
    You are wasting money.
  • and to tell you the truth I am pissed. I have never put anything under a full tank of gas and 90% of the time I have seen the gas light come on. I have gone to the same gas station since day one (aside from 3 different gas stations to see if it was my gas station giving me bad gas) I have tried premium, midgrade, and regular. I have tried driving fast, driving slow, driving 8 miles to work mostly freeway and now I am driving 3 miles to work with a mile or so jaunt on the freeway.

    I can tell you now there is no break in period. There is no getting better or worse. I went on a rallycross where you get a packet that tells you "turn here" "go this speed" and there was a lot of leaving it it in 2nd going up a hill trying to keep it at 25mph...that tank which also included 2 laps around Portland international raceway got me 28mpg. That was the best tank I have seen yet.

    For the majority of the time I have owned the car (and I have been keeping my gas reciepts since the beginning of the year) I see anywhere from 240 miles to 260 miles on a tank. I can run through a tank in a week or two depending on the amount of driving, but its always taken 9-10 gallons of gas and has allways got me 240-260 miles.
  • backybacky Twin CitiesPosts: 18,618
    On a 3 mile commute that includes accelerating onto a freeway (maybe the worst thing for mpg except for standing still), and only one mile on the freeway and the rest in city (maybe with some stops?), 24-26 mpg is not that bad IMO.

    With 3 miles to/from work, that's 30 miles a week assuming 5 days per week. What kind of driving do you do for the other 100-200 miles per week? Have you tried taking it on a long (over 100 miles) highway trip at a reasonable speed (60-70 mph) to see what mpg you get? If you don't get at least mid-30s under those conditions, I'd say something is wrong with the car.
  • Our 2007 Hyundai Accent gets 40 percent worse mileage than it's supposed to.

    Since purchasing the car in December 2006, we've averaged 16.5 mpg in the city, instead of the rated 28 mpg. I know that mileage ratings are never as promised on the sticker, but our fuel efficiency seems excessively low -- and it's consistently low.

    Our Accent has 2,600 miles on it -- almost all city driving.

    Two other pieces of information and questions: The dealer said that we should drive it on the highway and that would improve our city mileage. Is that correct -- that driving it at highway speeds will also improve city driving mileage? Or does that sound like a dodge, since our mileage is so much lower than it should be?

    The engine's head gasket was replaced in July 2007. I'm wondering if that major repair may also be a factor in our car's low mileage (which has continued after the head gasket was replaced.) The head gasket was replaced because the check engine light came on.

    How low is low when it comes to mileage on a brand new car? What should we do about this?

    Any advice and suggestions would be appreciated.
  • backybacky Twin CitiesPosts: 18,618
    One thing that would be helpful to know is, what was your car prior to the Accent, and what fuel economy did you get driving it in the same way? Also is your Accent an AT or stick?

    All city driving can be hard on the engine long-term as it never gets to higher revs for a long period of time, to burn off deposits. But your car isn't that old.
  • forbesjforbesj Posts: 22
    My commute is almost the same as yours. 3 or so miles, about a mile on the highway. I almost always wind through the gears getting on the highway as quickly as reasonably possible, and there are a few traffic lights on the way, too. Now, granted, my Accent is six years older than yours, a 1.5l (not the 1.6), and a manual, but I've typically seen 30-33mpg in commuting to work, and I've always driven my cars pretty hard (I honestly beat the crap out of the Accent for 6 years, and it still runs fine). Given that the new Accent is larger, has the bigger engine, and has an auto, 27-28mpg would seem reasonable for the commute. So, you getting 26 seems to be no real surprise and within reason.

    If you *really* want to see what kind of mileage your car can manage to get, this will take a couple hours but might be worth it:

    drive the car around for 5-8 miles to warm it up. Fill it full with gas at your normal location (preferably same pump you might "normally" use), and then get on the highway at at time there will be no traffic. Cruise at 60mph or so, go 50 miles one way, 50 miles back, give or take a bit, and then refill at the same pump again.

    If you're seeing anything under 30mpg while doing that, you either have a lead foot, or something isn't going right with the car, or you just have bad luck. I've seen 40+ out of my old Accent on a few occasions.

    For comparison's sake, in my new car (Civic Si), also being driven pretty hard, I'm seeing ~27mpg or so, although I did have one tank at 23 (more city, and harder driving including some sustained time over 5k RPM with liberal applications of throttle).
  • besmithbesmith Posts: 11
    I've had my 07 accent hatch back 5 speed since nov. Right now I just turned 11k. I usually get 260-280 a tank, and can get 300 if i drive better and drive longer with the gas light on haha. My previous car (95 maxima auto) would go 320 on a tank doing the same drive but it had an 18.5 gallon tank) For the most part I like my accent, I do with it was faster, and had an extra gear. Its quiet on the freeway unless your going like 75+ because its spinning at 4k :( . the only problem i've had so far was my air bag lights came on and i took it to the dealer and they reset it and its been fine since.
  • We have had our 2007 GLS 4 Dour Auto w./ 15" Alloys since Novemeber and my commentary on MPG is....
    EXTREMELY DISSATISFIED.

    The vehicle is primarily used 5 days a week city driving 8 Miles Each way and we are averaging between 15 & 16 MPG CITY.

    The car has 5,000 miles. We have had 3 Oil Changes and will be getting the fourth next month. The tires have been maintained with 30 PSI.

    We have taken a few long trips with all HWY miles. 1 500 RT. 1 300 Mi RT and several 125 Mile Round Trips. This was done a various monthly intervals where each HWY trip averaged between 30 and 32 miles per Gallon.

    The car seems to be idling normally on a day to day basis and I see no reason for CTY MPG rating 50% below the estimated MPG.

    if after 7,500 CTY does not improve I will pay the $100 diagnostic but i speculate after 11 months of drivign thsi vehicle is a wolf in ecenomi clothing.

    I Suggest
    DO NOT BUY
  • backybacky Twin CitiesPosts: 18,618
    For a point of reference, CR averaged 19 mpg city in their tests. But there's no way to tell if their "city" driving was like yours. Does your 8 mile trip involve any stops and idling time? How long do you let the car warm up? If your trip involves many stops and idling, it is the proverbial "worse case scenario" for fuel economy. :(

    32 mpg seems a little on the low side for a highway trip. (FWIW, CR got 37 mpg on their "highway" trips.) Were these trips purely highway miles (e.g. no stops), and what were your speeds on those trips?

    What fuel economy did you get on the car you drove (on the same daily trips) before getting the Accent?
  • The point of reference was Hyundai reporting 32 CTY & 36 HWY which now a year later has been changed to 28 CTY & 37 HWY.it's not that I ever expected to get 100% of the published estimates but 50 % below the published estimates for CTY millage from September 2006 is ridiculous.

    As I had stated on real HWY millage while I should complain I won't for being in the 80% range of what had been published is not bad now is it. Wait I think I will change my mind I want to complain about 80%. Do I pay 100& of the total cost of ownership or 80% of it.

    To be fair I was not traveling at 48 MPH I was traveling between 60 & 65. What the hell is this 48MPH testing. Who drives 48 MPH. Give us ratings based on 55 MPH so I am complaining. Hey 55 seems to be the median.

    Even by what information I am seeing today the 15/16 MPG is only 55% of the estimate as currently published.

    The 8 mile trip does involve stop idling time where the overall trip is done in 20 to 25 minutes averaging 30 MPH when not Stop Idling. I would estimate that there is 10 minutes of stop idling per trip.

    Where you said is the car warmed up seems like rediculous 1970s hogwash. cars today idle at normal RPM within a minute during average temperatires in the spring, summer & fall so I do not see by what RPMs the engien is runnign at at idle time in some so called immaginary warm up operiod is the problem.

    The HWY tests were all HWY miles at 65MPH so I am not complaining one bit on Real HWY MPG.

    The car before this was a 1993 Nissan Altima where it optimally performed 22 MPG doing the same exact trip as this work trip is now going on for 20 plus years.

    If our 10 minutes of Idle Time each way is some worst case scenario and this is where the real MPG is lost I view this as a Hyundai problem with Idling Fuel Millage.

    Plain and simple there are 6 cylinder cars over the last 20 years that have performed better in the same scenario.

    My 1990 MX6 Mazda that I owned for 10 years was better.
    The 1993 Nissan Altima that my wife drove on this same daily CTY trip for 14 years was better.

    The Hyundai is a good sticker value but the Real MPG may be one of not the least realistic I have ever owned.

    Even the CR test at 19MPG CTY is less than 68 % of the estimated mileage. That within itself is a 32% error in published documentation. Manufacturers should be held accountable and be held liable for financially compensating each and every customer. Some strict formal US Government test should sternly regulate this but any half educated individual should generally know the US government shows little concern for it's own people.
  • backybacky Twin CitiesPosts: 18,618
    First, realize these aren't Hyundai's numbers you are comparing to--they are from the U.S Government--the EPA. Hyundai is required by law to report them on the car's window sticker.

    Second, let's suppose that while you are driving on your daily commute, you get 30 mpg while you are moving. That wouldn't be too bad, would it? But your trip takes 25 minutes, and 10 of that is stop/idle time. During those times, your mpg is zero. So your overall mpg for the entire trip is only 18 mpg, assuming you could get 30 mpg while the car is moving--including accelerating from the stops, during which your mpg will be far less than 30 mpg. Your actual numbers aren't too far from this estimate.

    The odd part of this to me is the 32 mpg while driving 60-65 mph on the highway. That seems too low. For example, I can easily get mid 30s, even upper 30s, with a much larger Hyundai engine (2.0L, 138 hp Beta II) in a heavier car, when driving 60-65 mph without stops on the highway. That is with tire pressure between 32-35 psi (varies some with temperature), a light foot on the gas, and no other strange stuff e.g. bad weather, strong headwinds.

    Here is something to try if you are so inclined. Some rental car companies have Accents (Hertz for one). You could rent one for a day or two and take it on a highway trip, and see what you get. That could tell you if the FE is typical of the Accent, or if there's something wrong with your car.

    P.S. The revised EPA FE estimates for the Accent AT are 24/33. So at 32 mpg you are very close to the EPA rating for the car. But with careful driving, I've found it's possible to exceed the EPA ratings, especially the re-formulated 2008 ratings.
  • The revised EPA FE estimates for the Accent AT are 24/33.

    Yeah I guess this is all governmental stuff already which juts further. Plain and simple you can't trust Big Business or Goverment.

    Yes my wife's trip has some idle time but whose CTY trip does not have idle time. As far as I know every CTY I have ever visited has lights and stop signs where vehicles stop. Maybe the EPA have some imaginary city where cars can travel at 25 MPH without ever stopping.

    The funny thing is the 1993 Nissan Altima making the same trip with the same general traffic situation over the last 20 years obtained 22 MPG CTY during optimal performance. My wife drives Off Peak Hours with less traffic than most in the NYC area. The last year where a tuneup was necessary the Altima dropped to 17 MPG so I am not too happy that 14 year old car that needed a tune up had better gas millage than the new Accent.

    It is my opinion that all these escalated estimates over the last few years is nothing more than BS to sell more cars. Governments lie to their people. We garage our vehicles. Funny thing is that 1993 Nissan Altima may very well have lasted another 10 years with the way we maintained it. We let the necessary tuneup go because we thought why spend the money when we planned on buying that Accent that should have performed close to 50% better than the old Nissan. So what did we get a new car taht gets less than a 19934 Nissan that needed a tune up. Another thing about the Hyundai Accent. At the 2005 Auto Show they had an Accent with HYBRID. We were eager to purchase that but Hyundai has failed to deliver a HYBRID. My guess is they don't want to warantee a HYBRID fro 5 Years so they scrapped as being cost prohibitive for their current consumer market. He they fooled me into beleiving 32 MPG CTY. You better believe I am not happy with 15 and 1/2 MPG CTY regardless of the 10 minute idle

    Fortunately we keep our cars a long time and maintain them where they have depreciated to Zero by the time the next new car purchase comes along
  • Here is adding some more data regarding what I call EPA Santa Clause Syndrome.

    The city test is approximately 11 miles long and simulates a stop and go trip with an average speed of about 20 miles per hour (mph). The trip lasts 31 minutes and has 23 stops. About 18 percent of the time is spent idling (as in waiting for traffic lights). A short freeway driving segment is included in the test. The engine is initially started after being parked overnight.


    So 18% of the driving is idle time. Sounds close enough to what my wifes idle time is not to get a 50% differential between EPA and between our Real World EPA.

    My wife drives at most 20 to 25 minutes driving 8 miles where typically 8 to 10 minutes is idle time. She similarly has a short HWY stretch where for her it is 1 mile. She is not Mario Andretti in a Hyundai Tuscon. One day soon I will get exact numbers of idle time and start/stops and compare to this EPA.

    With my wifes driving numbers being fairly close to EPA I wonder why she is 50& below last years EPA 42& below this years EPA for the same vehicle with similar driving conditions.

    So in a general observation the EPA supposedly takes in account for 18% idle time. Even if my wife has a 25 % Idle Time would that make for a 50% or 42% difference in EPA and Real CTY MPG for this car.

    As I said the car is maintained 100% to Hyundai recommendations. WE are getting oil/filter changes every 3 months. The RPM seems normal. There does not seem to be brake drag. Tire pressure is at the suggested 30PSI cold.

    The only problem I see is government and auto manufacturers lying to the public. Wake up people Big Business and Governments lie to the people all the time.
  • I was surprised reading so many complaints about MPG. Although, I whine about mine but that's because my '94 Hyundai Excel got 42 IN TOWN, and that's just hard to beat. I bought my Accent with 25K on it & right off the bat I was getting 37 MPG in town - and I live in the mountains & have a brutal hill to climb going home. I have had trouble with the car - finally found out the speed sensors had gone out - and even then it never dipped lower than 30 MPG in town despite having all kinds of trouble shifting & sometimes not being able to get in top gears. I haven't had a chance to take a trip in it except for when it was having it's problems - and even then on the highway it got 39 MPG, despite winding through the Smokie Mtns with it's troubles. I imagine it'll crack 40 on the hwy now that it's fixed.
  • Same here...But I guess you're a better driver. My best was 35mpg. I got mine last March 07, I have 25,000 now! I do my change oil month. Using Mobil 1 fully synthetic on walmart, $22, Supertech Filter $3.If I got to Pepboys, just regular penzoil is about $30. I got 280 /35mpg on full tank. I usually do 85-87 mph on freeway. Yes, its 4,000 +rpm yet still get 280. Sorry to hear about your airbag. Mine has knocking sound every cold start. Dealer says, it was normal. Hmm..Do you have them? I got some e-news from my insurance about this model has rough idling on cold start. It just need ECU - reset.
    and its not what I have.
  • I took a trip up to the canadian border to find out how much gas I use on the freeway. I also found some interesting information as I went up:

    According to mapquest the drive should take 268.35 miles, however my odometer told me 259.8. I used 8.182 gallons of gas. If I use the mapquest mileage I get 32.79 MPG, but if I calculate it with my odo mileage I get 31.8 MPG.

    Those conditions were mostly driving 65-75 MPH and for a good portion of that journey I got to sit behind a ford F-150 with a camper on the back so that did help my mileage. That was fair weather, no rain.

    On the trip back mapquest says 267.62 miles, where my odo said 257.9. I used 9.655 gallons of gas, and my miles to the gallon calculated by mapquest was 27.71, and my odo calculated 26.71.

    Those conditions were bad, considering I was averaging 80 MPH and it was pooring down rain, windshield wipers on full blast. Lots of times when I just had to floor it and pass semi's and trucks.

    So I found out that if I average 70 MPH instead of 80, I can achieve 5 MPG better, as well as my odometer is off by about 10 miles every tank of gas (which is 1 MPG better then calculated if filling up with 10 gallons of gas).
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