If your car was a recent build (post Aug. 2011) it supposedly already has the TSB specified fluid in it.

OPPS.... this has already been addressed.

 

I have 8,800 miles on my 11 and still haven't made a decision whether I want to go with Redline MTL or Amsoil MTG... I haven't had any issues yet, can anyone chime in as far as their experience with either??

 

NO issues= leave it alone.I have whatever came stock in my 2012 and once warmed up it shifts smooth as glass.If it aint broke dont fix it!!!!!!

 

I get occasional grind when cold, have the Barton shifter with 2 post bracket, but I always have to muscle it in gears and I hear changing the fluid makes a world of difference... And I know others have tried both of these. It's not a DD and I live in cold climates, I know how to avoid the grinding, but I kinda wanna get that factory sludge out already

 

Redline at 324 miles for me.