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Hyundai Accent Real World MPG

84 messages,  Last post on May 03, 2009 at 1:13 PM

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What is this discussion about? Hyundai Accent, Hatchback, Sedan


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#38 of 84
Re: Hyundai Accent: Real World MPG [trendmonger] by trendmonger
Oct 18, 2007 (6:07 am)
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Replying to: trendmonger (Oct 17, 2007 12:36 pm)

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.
#39 of 84
2005 Accent GLS Hatchback MPG by jannes
Nov 02, 2007 (11:42 am)
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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.
#40 of 84
Re: 1 year 10,000 miles on my 2007 Accent SE Auto [besmith] by hatchbackfreak
Nov 18, 2007 (8:00 pm)
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Replying to: besmith (Aug 30, 2007 8:54 pm)

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.
#41 of 84
A full tank of gas and a drive from portland to the canadian border by accentuate
Dec 06, 2007 (9:47 am)
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Replying to: hatchbackfreak (Nov 18, 2007 8:00 pm)

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).
#42 of 84
Re: Hyundai Accent: Real World MPG [79customd] by radar1
Dec 11, 2007 (6:07 pm)
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Replying to: 79customd (Aug 20, 2006 4:31 pm)

Mine is an 05 hatchback, stick shift.
I consistently get between 34-38 US MPG. I don't count the first tank which was only 29 because the dealer filled that one and probably not to the top. My daily commute used to be 5 miles each way in rural 45 MPH zones in OK, but now is 24 miles each way in high speed traffic in GA (normally cruise with traffic at 75-80 MPH).
Car runs great and I have had no quality issues at all in 30,000 miles.
#43 of 84
2008 Accent by litesong1
Jan 06, 2008 (12:47 am)
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Three tanks have turned in 32, 32 & 30.7 MPG in mixed backroad, highway & city driving for my wife's 2 door 5 speed Accent.
#44 of 84
further gas tanks by litesong1
Jan 26, 2008 (7:33 pm)
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Further gas tanks following my 1/6/2008 post are 30.2, 30.9, & 29.7MPG.
Sure hope these lowering gas MPG numbers are due to no trips other than work & temperatures getting colder. Also hopefully, ALL these low MPG numbers are due to lower energy winter mix gasoline. The MPG better not get any lower.
#45 of 84
Re: further gas tanks [litesong1] by litesong1
Feb 17, 2008 (8:23 am)
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Replying to: litesong1 (Jan 26, 2008 7:33 pm)

I encourage every Accent owner to compile their MPG data with the gov'ts fuel economy website. Few Accent owners do compile data with fueleconomy.com
 
When you gather your data at that website, you get a line graph that easily compares differences in MPG that you get. With the notes you can add, you can see WHY the diffrences in your MPG are occurring, whether it be differences from cold or hot weather, low energy winter mix gasoline as opposed to high energy summer mix gasoline, A/C or no A/C, styles of driving, car mods or running changes, or gasolines. If you let your data be compared to other owners, you can see how your car is compared with similar Accents.
 
It really is an excellent website. Honda drivers seem to be the most users of the website. If more Accent drivers used the website, it would answer so many questions asked on this website about fuel economy.
#46 of 84
Re: further gas tanks [litesong1] by katmandu2
Feb 27, 2008 (2:17 am)
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Replying to: litesong1 (Feb 17, 2008 8:23 am)

Another excellent website for keep tracking of your fuel mileage is www.GasPrices.com
 
 There is a Fuel Log on that site that you can use.
#47 of 84
Re: further gas tanks [katmandu2] by litesong1
Mar 09, 2008 (2:43 pm)
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Replying to: katmandu2 (Feb 27, 2008 2:17 am)

My wife's Accent has a v.consistent 30 to 32MPG since Dec.2007 on low energy winter mix gasoline going to work with a mix of city, country & highway driving. The last tank was 35 MPG! I think it probably was the higher energy summer mix gasoline...possibly a bit of warmer weather too. We'll see if future tanks stay close to 35MPG or return to 32 MPG.

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