Best Manual Tranny Fluid?

whats the best stuff? Cars got 90k on it now and i havent changed the tranny fluid since i bought it. What would be the best stuff to put in? GM synchro mesh? I have no clue.

GM ATF is all you use!!!

gm syncro mesh or mobil 1

gm syncro mesh yes,mobil one no

Isnt ATF for autos?

most sticks use it now

dunno if i could trust the fact the i’m putting atf in it… kinda scares me

how much gm syncro cost at the dealer?

penzoil syncro mesh

same as gm but cheeper

pimp autozone here i come!

Synchromesh ftw

Redline MTL. Been in my tranny for about 4 years now, no problems.

My T56 on my LT1 Firebird requires ATF according to the GM spec. I run (road racing) Red Line D4 ATF and like it.

i think im gonna go with the penzoil. itas like 6 dollars a bottle.

I didn’t see what kind of car you have, but it depends on the tranny.
Just make sure you’re using the right one, GL3, GL4, GL5, whichever yours takes.

I know putting GL5 in a DSM tranny is bad juju because the synchros are brass, and some of the GL5 additives are corrosive to them.