[Bruce.huling]

Good thread.
Mine is like

Empty about 1/4 tank
5 gallons. 1/2 tank
10 gallons. Full

10-19 gallons, bounces between full and beyond.

My solution. Gas station at 150 miles is sound practice, unless it’s been an exceedingly good time, then 100 miles between top off. Good time to stretch and look for things falling off. It’s all about the foot.