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The "on board" on my 2012 is off from 3 -5 mpg. The dealership did a test on it and it was off 4.5 mpg. At 65, this car is NOT going to get 40 mpg on the highway, best I have gotten is 38.4 with "on board" showing 42.5.Report it
sorry 3000 miles on my car not 300 wheres an edit button when you need itReport it
hey nerl just got 49 hwy today on a 60 mile hwy trip using cruise at 60mph seems that it WILL get 40 on the hwy huh.my driving consists of 98 percent city/suburban/rural i record mileage every day along with every tank and have never missed a day with 300 miles on my 2012 mt elantra my lifetime fuel economy for the car is over 41 mpg with verifiable results on my mileage logs there posted at cleanmpg.com my user name there is the same as here look it upReport it
Update: 1600 miles and so far with mixed driving on highway, A/C, traffic, and neighborhood stop/go I've averaged 35.7 mpg. This is all with 10% ethanol mixed gasoline (mandated in WA). If I drive 55-60mph without many stops I can get it up around 44-45mpg but it quickly drops with speed. It will drop 70mph with A/C. If you get on the highway and stay 55-60mph it gets >44mpg. So for my vehicle, I'm getting better than the EPA estimates but I find that is the case with any vehicle I drive because of the way I drive. I'm estimating I'll get 40-43 mpg on the highway, 31-33mpg city and my overall mix seems to be around the 35-36mpg. Also... people have reported that the computer overestimates fuel economy. That has not been the case with mine. It has actually underestimated it based upon my manual calculations but not by much (0.3 mpg). It is probably statistically in the noise. I assume that people are resetting the computer and looking at small slices of their data and drawing poor conclusions based upon it. Overall at this point....I'd say the EPA estimates are right on the button and I've not changed any other opinions of the vehicle at this point. It is a great ride that sips fuel.Report it
I track every tank (missed one so far acutally) and I do it manually on the fueleconomy.gov site. I see < 1 MPG difference from the dash computer to my manual ones. Just got 39.7 MPG on the last tank that was 2-lane roads. I've managed as high as 43 MPG but that was all highway at 60 MPH. Since day one I've managed around 35-36 MPG.Report it
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