Originally Posted by jacobson.s
I have a fully loaded Laramie Crew 4x4, w/3.92 rear end, I Have been hand calculating my gas mileage since August. View attachment. I simply put in date, kilometers at fillup, litres to fill, and it calculates MPG, averages, Best, worst, etc. And its color so-ordinated for a quickview, Red=Bad, Yellow=OK, Green=Good. The O/C SYN. means Oil Change Synthetic.
I hope mine goes that way, but right now, with ~2500 miles on it, my numbers are about 2/3 of what yours are, and I DO NOT hot rod it.
You can see by my spreadsheet, the #'s ain't too good so far .