best fluid for the ZF 6 speed

[INDSLPWR04]

I want to change the fluid in mt tranny. Any commendations?

 

[PSDPlayer]

Mercon ATF. It is thinner than gear lube to allow the syncros to bite on the gears to shift properly.

 

[INDSLPWR04]

Would a synthetic be better than that or is it not worth the money?

 

[PSDPlayer]

As long as it meets the Mercon viscosity. It won't hurt it.