I know there are a lot of posts on here about flushes vs drain and fills and I will say from my research I am firmly in the camp of ‘Keeping up with regular flushes at the 30k mile intervals. That being said, I recently got a 2016 Avalon (non hybrid) and the previous owner was good about staying on top of the flushes. I was due for one at \~80,000miles but I am sitting at 99,000 now.

My question is- have I let it go too far now and have I left the safe window to do another flush? Is my best course of action to just do the drain and fills from here on out?

I haven’t noticed any issues with shifting or anything like that but I have not inspected the fluid so I don’t know how much particulate matter is floating around in there

I hope my question is different enough to warrant a new answer, I know subreddits can get congested from people reposting the same question over and over again- and if I missed a post that answer my question directly feel free to flame me in the comments but also please direct me to the post