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Discussion Starter · #1 ·
Approaching 3K miles in the clock and I hit an overall average of 27.9 MPG on a recent road trip with 85-90% highway miles and the cruise set to 75. I'm going in for my first free oil change next week and will have them hook it up to the scanner to see if there are issues. Pretty crappy that I can't even hit the "combined" number with a heavy bias towards highway driving.
 

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Too hard to make a definitive statement yet, only 600+ miles but it's looking like 30 to 32 mpg around town. Ironman Silver VTA

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Ave 25mpg with almost 90% city driving, not a lot of freeway. I was really hoping for better mpg, like 28-30.
 

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I've gotten an average of like 32 or something like that with pretty much all highway and cruise control. My comute daily is very stop and go, and I've played around with using cruise control whenever I can and averaged out at 30 by taking off quick to get to cruising speed and hittign the cruise control. I'd say week to week though my tank ends up averaging 26-29. Sooooooo not quite the gas sipper I expected, but I still love it, so I can deal with it.
 

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I have about 1400 miles on the O right now and have averaged 35.5mpg. My daily commute is about 25% city 75% highway with a highway cruising speed of 65-67mph. I have been through 4 tank full's, 3 of which were 87oct and 1 was 91oct. I had no difference in mpg with the added octane. If I drive it like I drove my Elantra I should be able to squeeze 1-2 more MPG. With the VT that has been a challenge.
I am getting my MPG from the cars read out, I haven't actually done the math from tank to tank. I don't know if the car's read out is accurate though with the recent confession from Hyundai that there rating method was flawed. Thoughts?
 

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Discussion Starter · #7 ·
I have about 1400 miles on the O right now and have averaged 35.5mpg. My daily commute is about 25% city 75% highway with a highway cruising speed of 65-67mph. I have been through 4 tank full's, 3 of which were 87oct and 1 was 91oct. I had no difference in mpg with the added octane. If I drive it like I drove my Elantra I should be able to squeeze 1-2 more MPG. With the VT that has been a challenge.
I am getting my MPG from the cars read out, I haven't actually done the math from tank to tank. I don't know if the car's read out is accurate though with the recent confession from Hyundai that there rating method was flawed. Thoughts?
If you are pulling 35.5 off the car's digital average then you'll probably find the computed mileage to be more like 29.5 mpg. The car's computer lies way worse more than the window sticker. My recent trip to Chicago the computer average read 33.4 and hand calculated numbers at fill up showed 27.9
 

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If you are pulling 35.5 off the car's digital average then you'll probably find the computed mileage to be more like 29.5 mpg. The car's computer lies way worse more than the window sticker. My recent trip to Chicago the computer average read 33.4 and hand calculated numbers at fill up showed 27.9
I'll have to run the numbers and get back to you.
 

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My Veloster averages 7.4 litres / 100km around town and the two longer drives I have done have been about 7.6 litres / 100km. One drive was along winding roads in hilly countryside and the other was a mostly freeway cruise at 120km/h with airconditioning on, so I could have done better on the second drive had I gone slower or had it been a cooler day. Car has now down 2,200km.

I have verified the computer against fuel and distance and it's accurate.
 

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I think there may be several variables when computing from tank to tank that we cannot eliminate, so I'm not convinced that is any better than the car's computer. The issue with the car's computer lies in how often it takes an average. The silly instant gauge clearly is useless as it is just a measure of how much the throttle moves. The Eco coach calculates every 2.5 minutes and the average MPG computer computes however often you want it to. I have tried leaving the average MPG trip computer alone for several tankfuls and comparing that number to "actual" MPG via computing miles driven by gallons put in tank. I can't get them to match but I believe it is closer than anything else. All I realy know for sure is that it is better than my last car; a 2003 SRT4, which wasn't terrible either as long as I stayed out of the turbo.
 

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Discussion Starter · #11 ·
Ehhh.....Not that it much matters in this case (other than the technology resides within the same manufacturer), but on my 2006 Sonata LX (V6),if left alone over the course of a fillup, the trip computer average mpg was never off the hand computed mileage by more than a tenth or 2. On top of that, the car exceeded the window sticker EPA estimates (20 City/30 Hwy) from the day I drove it off the lot. I routinely got 26-27 around town and never saw less than 34 on highway trips.
 

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I agree that the car's electronic's are pretty reliable. Especially in view of all the advancements made in automotive electronic areas.

If an accurate figure is desired by doing it manually (recording the figures) you necessarily need to compute it over many tankfuls of gas seeing how difficult it is to accurately fill the tank to the same level each time.

Although I have yet to get a thousand miles on my VT it seems to me to want to hang around 29 to 31 mpg's around town.

I drive fairly conservatively right now, but have no reservations about using the car fully to it's limits after a good break-in period, however I'll never abuse it either.

I love my Ironman Silver VT a/t Ultimate Package!

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I avg 22 atm, I'm surprised I haven't seen 17 mpg yet lol. Before my 1000 miles I was averaging 25-26 mpg so its really based on how you drive.
 

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im averaging about 25 mpg and thats because i got a SRI on it and run it in sports mode whenever im not on the freeway because i love the sound and power.
 

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You dont need to accurately fill it everytime... you just need Fuelly.

Install the app on your phone, every fill up, it calculate your mileage using the odometer reading and the amount of gallon you put into the car. It also keep track of gas price, and give you an estimate of how much $$ you spend on gas per month/year.

Fuelly says I'm getting 25-27mpg. But my car is still under 1500 miles, and I drive it pretty heavy and mostly in the city.
 

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The onboard computer is quite accurate in my experience and I stopped doing the old-school calculations several tanks back.

For the most part I'm exceeding the window sticker and have got 41mpg on a highway trip.

I've been messing with the ECO-Coach thing on my M/T and my right foot appeared to be a problem. I would pick up one of my passengers and he would see my graph and wave his finger at me for being so naughty.

For me it turns out the problem is traffic jams and not my right foot. If I WOT it often and keep it just under a reckless driving ticket I get 25mpg. If I take it easy and stay on the highway I can get 28mpg. But a few really bad traffic jams - I do live in Atlanta - and it goes down to 22mpg.
 

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Glad to see I am not the only one who is a little disappointed with the fuel mileage. I am using 8.2L/100km ( 28.7 mpg) with almost all of my driving on the highway. Hyundai's calculations say I am getting 7.2L / 100km (32.7 mpg). I wish. Can't wait to start receiving my gas rebate card from Hyundai as their "claimed" fuel ratings were one of the reasons I bought this car.
 

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Glad to see I am not the only one who is a little disappointed with the fuel mileage. I am using 8.2L/100km ( 28.7 mpg) with almost all of my driving on the highway. Hyundai's calculations say I am getting 7.2L / 100km (32.7 mpg). I wish. Can't wait to start receiving my gas rebate card from Hyundai as their "claimed" fuel ratings were one of the reasons I bought this car.
How old/new is the car? Ive got about 8000kms on mine now and Im getting about 7.5L/100kms mostly city. I dont drive on the highway much, but my last trip to Buffalo, it was down in the mid 6s.
 

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I have just over 5000km on mine. Trip computer has indicated a couple of times that I am in the 6.8L/100km range, but when I calculate it with the good old pencil and paper, I never get anything close to that. Good thing I really like everything else about the car.
 

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I have just over 5000km on mine. Trip computer has indicated a couple of times that I am in the 6.8L/100km range, but when I calculate it with the good old pencil and paper, I never get anything close to that. Good thing I really like everything else about the car.
34-1/2 mpg is not bad at all. Right in the mix!

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