What's the best transmission fluid to use on a 2004 Xterra SE Super Charged with Automatic trans? And does it have a Filter ?

Bump! Just joined wondering what synthetic is everyone running?

Amsoil it is the best! It rates higher than every synthetic out there

i believe redline tops it

Well here is some cool information about tests and amsoil and redline
http://www.performancemotoroil.com/Redline_test.html

Its the only oil i will ever use again.

Here are some other tests
http://www.amsoil.com/performancetests/g1971/index.aspx

my dad is a authorized amsoil dealer....