Another goodie from
www.fueleconomy.gov.
Its a PDF file for recording fillups to enter them into the website at a later time. Its geared towards the Govt's website, but it applies just as well here. Has columns for date, mileage, gallons, %highway/%city, notes, etc... I'm going to keep a copy in Rusty so its easier for Dad to record the fillups so I can report them here.
-Jay
https://www.fueleconomy.gov/mpg/Fuel_Purchases.pdf