I know I read somewhere about computerized transmissions that incorporated some degree of 'learning' capability, where periods of consistent driving styles (say; aggressive throttle) could move shift points to a degree.

I had thought this was told to me WRT my '94 Ford's EOA trans, but that certainly could be wrong.

Reason I am wondering is, lately I have been driving my wife ex-'03 GP 3.1L about once a week. In that gas is cheaper and it gets about 23, whereas my diesel 2500HD gets around 16, it's decent for whipping around/ taxi-ing. I don't think she's driven it since she got her Malibu in Aug of '09; it's been me 97% of the time (my son the other 3%... maybe).

I've ALWAYS had a leadfoot, but at 103K, I swear this car feels like it's been getting quicker. No question in my mind it feels quicker than the '98 Intrique 3.8 that preceded it. Right now, the car pulls really strong between 3000 & 5500, better than I think it should and better than it USED to.

I dunno; just wondering if mildly hammering on it for around 2000 miles may have altered the shifting/trans action some.

BTW- I doubt I'm pulling down 23, but it passes for fun.

You are correct sir, newer transmissions do learn driving styles via the TCU/PCM.

Assumedly, if it is shift points that are moved, it can't be more than a couple hundred RPM max, right?

Or is this thing going to keep improving under my lead foot ?

Hmmm...

I can't speak for the 3.1, but LS1s defintely got better with age - noticing it happen was very cool.