Joined
·
3,310 Posts
Well im on 20k miles her ein a few months. time for a trans flush. tech says 12 quarts for a full flush and the machine lets the trans pump new fluid in and old fluid out into collection tank. if i do amsoil that a lot of $$$$$$. is the Gm automatic fluid THAT bad that it would be worth doing a amsoil swap.. i get 1/2 off all service so my trans flush cost 100$