noooooooo, the synths are TOO slippery 75w90 Valvoline or the Subaru Extra-S only!!!!

 

o'rly I research too u got a link?

here's one for you, the syncromesh is the effective ingredient in stopping the grind: Bartender: One Scotty's cocktail please. - Transmission (AT/MT) & Driveline - NASIOC

 

Alright, fair enough. It's been a while, but I've read that thread before. I wasn't convinced that synchromesh was the most important ingredient, especially when there's an equal amount of Shockproof in the cocktail too.

I've been thinking more along the lines of this:
Different Thought On 5MT Tranny Oil - ClubWRX Forum - Subaru Impreza WRX and STi Community and Forums

I just feel comfortable with Redline as a brand (for no good reason, really). Since the synchromesh isn't properly rated for my trans, I'm trying to avoid it.

If the synth doesn't work out, I'll most likely head to Mastro for the Extra-S.

Thanks for all the input, everyone.

 

I doubt you bought it with the Extra-S already in it. It most likley had the original fluid in the trans dependeing on the mileage.

 

I picked up a quart from Driven Concepts today. It's a nice shop.