i know these threads are redundant, but i tried a search and stuff but there was too much info to read through and i dont have that much time.

my tranny started having a chattering noise, new fluid should quite it up a good bit but is there any certain fluid that will quite it better than others and still have a good viscosity for protection. (i would imagine that higher viscosity and noise reduction go together) Im thinking of using redline 75w90 but is there something else, most preferably redline, that will server me better?

thanks guys