when you painted the gauge face plate did your mileage range change from 305 to 265? Unplugged my gauges to paint and now I only get 265 on a tank of gas?? Confused and dazed!!!

Solution if there is one???

i think the fuel estimator changes over time as it adapts to your normal driving and if you are getting longer ranges, it will eventually go up. it is also seems to be based initially on city type driving as far as range estimates...
try this out:
check the range after you fill up before a long drive on freeway and write down your mileage range and then set one of your trip meters to '0'.
at end of trip, check range miles that are left and subtract from original range reading. now check your trip meter - if you were driving at good speeds with little traffic, chances are you have traveled further than the difference indicated when subtracting the original range reading...
if you had been doing a lot of hard city type driving, your range would be reduced instead of increased...