Today I filled up my car after letting it run down to where the miles left showed   . At 39 miles left the Nav system came up and asked me if I wanted to find a gas station and showed the closest ones. (Nice feature) and I continued to drive because I wanted to get to a certain mileage mark. At about 30 miles left the display changed to miles left   , which I don't particularly car for but I understand they want to prompt you to stop and get gas so you don't run out and they try to provide a margin of error. (our old Lexus we could drive down to zero and still have range). So I drove another 15 miles before stopping to get gas. I assume I had somewher around 1520 miles of range left.
I stop and fill up at a station that is 100% gasoline, no ethanol. To my surprise the pump clicks off at 14.5 gallons. I squeeze the handle again and get to 14.63 before it shuts off again. I can hear fuel and I don't want to slosh it out so I stop filling at this point. When I start the car it shows the gas gauge as full but of course has no MPG rating yet. As we drive that climbs up to around 30 because we immediately got on the highway and I was doing between 65 and 70 keeping an even speed on cruise. Also my surprise it says my range is 315 miles, yet my avg mpg is showing up as 30 on the meter on the dash. That would mean I'd have just over a 10 gallon gas tank, something isn't right with that figure.
Ok, so granted someone's meter math who designed the electronics for the Santa Fe isn't as good as it could be (adjusting on the fly for current mpg and remaining volume to calculate range), I'm still baffled by the amount of fuel I could put into the tank. I was basically 3 gallons short of full, and at even 21mpg (city rating for FWD 2.0T) that would be another 60+ miles I could have driven so why the early warnings, inaccurate miles left reading and  getting near the end?
One of the following has to be true:
1) The calculations and electronic display are VASTLY inaccurate
2) We don't have a 17.4 gallon tank, maybe 15.4 in which case the advertised range of this vehicle is significantly less than advertised.
Using this topic thread, let's keep track of how much fuel you are able to put into your santa fe sport at fill up. Please record how many miles you drove on that tank, what your miles remaining reading showed on the dash, and how much you put into the tank. Here's mine:
A] 287 miles (artificially low due to lots of idling to show car to people)
B] 
C] 14.63 gallons
For those who don't know, I've attached the mpg ratings and fuel capacity for the different Santa Fe Sport versions as shown on Hyundai's website.
Something just isn't adding up with the mpg and capacity of the new Santa Fe and hopefully by gathering data we can figure out what it is. Given some simple math the range of my Santa Fe FWD 2.0T should be between (21*17.4= 365.4 miles and 31*17.4= 539.4 miles) If you just take the avg of 25mpg that would be a range of 25*17.4=435 miles.
If you assume you drive a car 1 gallon is left, it would be 25*16.4 = 410 miles. Why does my car say I have 315 miles left after a fill up? I wouldn't be happy with 25% less range than advertised!
(For a moment let's assume Hyundai made a mistake and the gas tank is really a 15.4 gallon tank, not 17.4, then assuming you drive until 1 gallon is left you'd fill up at around 14.4 gallons [close to where I filled up] in which case you'd have 14.4*25 as your "average" range or 360 miles which is still further than what I'm getting and what the display says... 14.4 x 21 = 302.4 miles, in essence pretty close to what the range says, so basically taking a smaller tank and the worst mpg rating is the only way I can get down to what the real world numbers seem to be, but I'm hoping to get more real world numbers from the rest of you.)
Can a Moderator / Admin make this a sticky topic thread?
I stop and fill up at a station that is 100% gasoline, no ethanol. To my surprise the pump clicks off at 14.5 gallons. I squeeze the handle again and get to 14.63 before it shuts off again. I can hear fuel and I don't want to slosh it out so I stop filling at this point. When I start the car it shows the gas gauge as full but of course has no MPG rating yet. As we drive that climbs up to around 30 because we immediately got on the highway and I was doing between 65 and 70 keeping an even speed on cruise. Also my surprise it says my range is 315 miles, yet my avg mpg is showing up as 30 on the meter on the dash. That would mean I'd have just over a 10 gallon gas tank, something isn't right with that figure.
Ok, so granted someone's meter math who designed the electronics for the Santa Fe isn't as good as it could be (adjusting on the fly for current mpg and remaining volume to calculate range), I'm still baffled by the amount of fuel I could put into the tank. I was basically 3 gallons short of full, and at even 21mpg (city rating for FWD 2.0T) that would be another 60+ miles I could have driven so why the early warnings, inaccurate miles left reading and  getting near the end?
One of the following has to be true:
1) The calculations and electronic display are VASTLY inaccurate
2) We don't have a 17.4 gallon tank, maybe 15.4 in which case the advertised range of this vehicle is significantly less than advertised.
Using this topic thread, let's keep track of how much fuel you are able to put into your santa fe sport at fill up. Please record how many miles you drove on that tank, what your miles remaining reading showed on the dash, and how much you put into the tank. Here's mine:
A] 287 miles (artificially low due to lots of idling to show car to people)
B] 
C] 14.63 gallons
For those who don't know, I've attached the mpg ratings and fuel capacity for the different Santa Fe Sport versions as shown on Hyundai's website.
Something just isn't adding up with the mpg and capacity of the new Santa Fe and hopefully by gathering data we can figure out what it is. Given some simple math the range of my Santa Fe FWD 2.0T should be between (21*17.4= 365.4 miles and 31*17.4= 539.4 miles) If you just take the avg of 25mpg that would be a range of 25*17.4=435 miles.
If you assume you drive a car 1 gallon is left, it would be 25*16.4 = 410 miles. Why does my car say I have 315 miles left after a fill up? I wouldn't be happy with 25% less range than advertised!
(For a moment let's assume Hyundai made a mistake and the gas tank is really a 15.4 gallon tank, not 17.4, then assuming you drive until 1 gallon is left you'd fill up at around 14.4 gallons [close to where I filled up] in which case you'd have 14.4*25 as your "average" range or 360 miles which is still further than what I'm getting and what the display says... 14.4 x 21 = 302.4 miles, in essence pretty close to what the range says, so basically taking a smaller tank and the worst mpg rating is the only way I can get down to what the real world numbers seem to be, but I'm hoping to get more real world numbers from the rest of you.)
Can a Moderator / Admin make this a sticky topic thread?
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