acdii Report post Posted December 31, 2013 This is a sore subject for some, and I noticed this morning a HUGE discrepancy on mine. I had filled up yesterday, put in 1.2 gallons more than the trip said I used, and the gauge was in the RED. It only took 10.64 gallons to first click, second click added.2 gallons. According to the pump, it was full to the top. This morning though, only having put 66 miles on, the fuel gauge was down 3/8ths from full. By my rough estimate that is 4.5 gallons of gas used for 66 miles. 13.5 gallon tank, 1.5 gallon reserve would put it at 3 gallons per quarter. When I got to work this morning, trip 2 showed I had used only 2.5 gallons over 94 miles, but the fuel gauge was hovering over 1/2 tank. Making an appointment for Saturday to get the oil change and tire rotation done, and will bring this up too. Wildly inaccurate! I have no complaints about the MPG, its frigging COLD out sub zero temps, and getting 37 MPG is right on the money from my estimates, exactly what I expect to see, however, IF the gauges are off, then 37 is a pipe dream, If the actual fuel used is roughly 5.5 gallons, the car is only getting 17 MPG. That is a HUGE problem if its true, then I will have an issue with MPG. I might fill up again today just to see how many gallons were actually used. I have never had the fuel gauge go down that much on a work trip. Quote Share this post Link to post Share on other sites