jinno
That is simply fantastic. You're beating EPA by about 10MPG.
My wife was also wrecking my tank averages.
Her car is the Grand Caravan and I find that if I keep the GC gassed up and parked in a VERY convenient place for her to access, and park my HCH the carport in the very back of the property....out of the way....the HCH is left alone.
Ta da..
my averages are also up again!