someone had told me to change the trans fluid to Royal Purple Syncromax and that would smooth it out somewhat. I have the fluid now im just trying to find out how i should go about changing it. I found out how to do it myself but im wondering if it would be better to have the entire thing flushed. Like AAMCO is offering the power purge or whatever for 99 bucks and they will do it every year for free afterwards. I was wondering how you guys would go about it. Is it that much better to have it purged out or would just draining it and filling it back up be sufficient?