I posted on here when I first got my 2010 Toyota Camry V6 automatic about transmission fluid changes and more or less followed the advice not to flush and instead do drain and refills. Car now has 126k and after neither drain and refill did it really run any better. Actually, has been about 20k since last one and trans is slipping slightly on very steep grades and just generally seems not to be at its best. Am concerned place that did it may not have gotten fluid level correct since they said it only took 2 quarts based on what they drained out, and a couple of websites say it should be around 2.5 quarts. That means tranny may be a quart low now (or not). Am thinking of taking to dealer to correctly check fluid level depending on expense and then having them do a fluid exchange albeit without doing the cleaning solution which so many seem to think is harmful. Of course, they may not be willing to do it that way or not take any responsibility for what happens in the future. So, feel like I should do something about fluid and doing a flush would be better than waiting for it to get worse when there would be real problems new fluid would never solve. What do people think? Car has 126k and has had 2 drain and refills for sure and probably nothing else. Won't take it back to place that did drains because they contaminated the oil last time and am still concerned they may have done that to the trans also, which would be another reason to get all the old fluid out. All thoughts much appreciated.