This was the most I've put in. Of course I was kicking myself as I forgot to stop midway and restart the pump. At the current price of $3.76/gal, I hit this station's $75 limit with 19.899 gals filled. I feared restarting would overfill, but I did it anyway. It didn't overfill but only put 0.287 more gals in. I would have preferred to stopped mid way and let it naturally shut off when filling up. Oh well, I'll try to remember next time.
I think I'll keep adding 5 more miles past zero (ie 25 next time) until one day I run out, or feel some stumbling, etc. We'll see how daring I get
I'm still curious how many gallons I can fill - this friend's photo shows 22.295, but I don't know if this was at first shut-off, or if he filled more, or how this particular pump shut off. I've been stopping at first shut-off.