If you take it in to have the fluid changed, opt for the power flushing and also change the filter or strainer, depending on what year model you have. I have a '99 ES V6, and it has an external tranny filter that looks like an oil filter. I believe that may have been the only year that was equiped with an external filter, but not sure. Also you might want to take it to a transmission shopor the dealership and have it properly checked out. By the way, I now have 258K on mine and still now problems. :wink: