02/I4, 70K, good (mine), never abused and has had several ATF changes
02/I4, 150K, good
02/I4, failed at 39K, babied and had fluid changed by dealer at 30K
98/I4, >150K, good
99/I4, >150K, good, this one has been abused
02/V6, 80K, good
01/V6, failed at 100K, babied and had dealer ATF changes
01/V6, 81K, good
02/I4, failed at 39K, babied and had fluid changed by dealer at 30K
maybe its not changed maybe it was flushed...
99 V6. Lags a little when shifting from 2nd to 1st when slowing down. Other than that, seems fine. I drain and refill every 6 months or 6000 miles. Unless I'm on the freeway I keep it in D3 so it shifts less and I never floor it from stop. I also never drive the car cold in the fall/winter. When putting the car in Drive from Park, I never touch the accelerator until I know the car is in 1st, and I always make sure the car is at a complete stop before moving the gear lever, like when going from Drive to Neutral to Reverse. Also, I pretty much plan on whether I'll use D3 or D4 depending on what road I'll be driving on, so I think of that ahead of time.
If I get on it when accelerating, I wait until 2nd gear to depress the pedal more. If at cruise & I'm going to downshift I make sure I'm using D4 so it will shift to 2nd instead of cruising in D3 and shifting to 1st. The former keeps lower rpm's, the latter causes more strain.
I know you have a 4cyl but thought I'd post what I do anyway in case it gave you any ideas. Take care of it and it will take care of you.