Funny you should say that...
I just did the exact same thing, put 13.341 in my tank.
Driving yesterday my 'low fuel' light came on at about 8 miles from home, I went home.
This morning with a cold car, I EV'd the 1-1/2 blocks from my garage to the gas station, set the handle on slow/low fill and stood there - and stood there.
I began getting nervous, I'd only driven about 8 miles on the low fuel alert and as it passed 12 gallons I grabbed the handle and continued the slow fill.
Finally it clicked off at 13.34, with no extra clicks - very different!
This has never happened before, normally it's a battle to get 10 gallons in the car, with 3 clicks every time.
Could the PCM update have anything to do with this?
What really worries me is that prior to this the low fuel alert would come on and indicate 40-50 DTE, not now, I went less than 10 miles and it was DRY.
I better keep my eye on this.
Edit: Yes, we have expensive gas prices...
Edited by GrySql, 18 August 2013 - 02:10 PM.