i went a few years before i decided to swap out my sending unit. i just carried a 2 gallon can of gas, as most should, but just knew i got at least 300 miles out of a tank before i needed to fill up. (50mile buffer) then i just used the trip for keeping track. even now though being fixed, my full tank reads empty. i like it as as i drive my fuel fills up . I'm in the twilight zone.