Well I figured since I have been keeping track of all of my gas receipts since day one, I might as well put them into a spreadsheet and get some use out of them. Here goes...

Total average gas mileage: 24.04232
Average gas mileage w/ winter wheels & tires: 22.43733
Average gas mileage w/ stock wheels and tires: 24.34712
Best gas mileage: 30.95454 w/ stock wheels & tires
Worst gas mileage: 18.79121 w/ stock wheels & tires
Average gallons per fuel stop: 14.25471
Average miles between fuel stops: 343.4671053
Average cost per gallon (premium): $2.091
Lowest cost per gallon (very first fuel stop): $1.419
Highest cost per gallon (very last fuel stop): $2.659
Total spent on fuel for the last 26,123 miles: $2261.31
Average cost per mile (gas only): $0.09

All mileages are from the trip counter, all gas mileages are calculated.

 

Sounds about normal.

 

I think one number past the decimal point would be enough.

 

What? You don't calculate your mileage to the half inch?

 

Impressive!