I know this is a common topic, but here it goes anyway. I installed a new tank today, so I got to see how the flakey gauge works with a new sender. With no gas in the tank, the guage was exactly on E (not a mile below like on my other vehicles). I put 5 gallons in: still on E. I put another 5 in (10 total), now it's up above 1/2. That's as far as I've gotten, but I expect that with it full, it'll be way up beyond full, since it's always been like that before. So, is this normal? My old sending unit was shot, but I guess this is consistent with how it's always been; sits above full after fillup, then drops like crazy by the time it gets to 1/2.