Far be it from me to argue with experts equipped with numbers, so here's my anecdote: My '02 Camry 2.4 liter, 4sd auto (U151E?) has had MaxLife ATF in its original, unopened (except for filter replacements during pan drops) transmission for the last 180K miles. The car now has 294K miles on it, and still shifts smoothly with no weird noises, and little, if any, crud on the pan magnets when the filter has been changed. YMMV, but I'd use the MaxLife again, just as I have for the past eleven years we've owned it.