ok, So I went to the gas station because my yellow light came on and the needle was nearly all the way through the red area. I had 320 miles. When I filled up the tank, it only took in 12.48 gallons. Meaning I must have had an extra 2.52 gallons to spare. If I take the lowest mpg (15) and multiply it by 2.52I get an extra 37.8 miles I could have squeezed out. So in all, I guess my average came out to 24ish.
I don't like how our needles drop so fast.
still, my bimmer gets better mileage