2011 Hyundai Santa Fe GLS 4dr SUV AWD (3.5L 6cyl 6A)
The MPG, when having first purchased the Hyundai Santa Fe, was upwards of 25.5 on trips and around 22 to 23 in the city driving.
This was the prime reason I got rid of my Dodge Dakota which was giving me 16MPG/18MPG city/highway respectively.
My total driven miles since the lease of my Santa Fe are 3800 +/- as of 12/12/11.
About a week ago, 12/05/11, the MPG had decreased to 19.0 MPG on trips and very little change in city driving.
I filled the tank and noted that the MPG reading went back up to 24.0 MPG for a few miles then dropped back to 19.0 MPG whether I was on the road at a constant 60 MPH or driving in the city at 30 MPH
Checking the actual miles driven since the last fill-up (on 12/12/11) with the gallons of gas consumed, i.e. Miles/Gallons used, the MPG calculated to 18.0 MPG. Why??
The odometer resets the MPG after fill up. Im up to 19.8MPG having driven 3 miles from the gas station and will continue to monitor the MPG to see if it reaches the expected MPG (the reason I purchased a Hyundai)
I brought the car to the dealership (where leased on 09/12/11) to have the problem checked and they werent able to find any problem other than the tire pressure was down by 3 psi. Our temp had fallen to below freezing that day but even so, when the problem first occurred, the temp was in the 60s.
Has anyone else experienced a similar problem and if so, is there a solution?
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