Subaru Enthusiasts Car Club of the Sierras - View Single Post - 6mt fluid choice? Notchy especially in 3rd.

Dean · 2008-01-16, 07:35 PM

OK, I can't handle the ton of bickering on IWSTI and Nasioc on this issue, and if I read one more post that Amsoil is the best thing ever, I am going to have to kill something...

My 6MT is quite notchy in 3rd. I could grab an audio clip from one of my videos, but it is like a nice clunk as it goes into gear. Not a grind, but a decent clunk on up or down shifts.

Not sure what fluid is in there, but am thinking about Redline 75W90 NS and/or some weight of shockproof like in the WRX.

Has anyone else experienced this on the 6MT and what fluid are you running? Tried any others to get rid of it?

I believe the 6MT is just a transmission and the diffs have their own fluid, right? So this is all about protecting synchros and allowing them to do their job spinning up/down the gear.

Thoughts, comments???

2008-01-16, 07:35 PM	#1
Dean Señor Cheap Bastarde Real Name: Dean Join Date: May 2003 Location: $99 Tire Store Posts: 9,294 Car: $.04 STI Class: Fast,Cheap & Reliable=STI Deal, did somebody say Deal? Oh, Dean, yeah that's me.	6mt fluid choice? Notchy especially in 3rd. OK, I can't handle the ton of bickering on IWSTI and Nasioc on this issue, and if I read one more post that Amsoil is the best thing ever, I am going to have to kill something... My 6MT is quite notchy in 3rd. I could grab an audio clip from one of my videos, but it is like a nice clunk as it goes into gear. Not a grind, but a decent clunk on up or down shifts. Not sure what fluid is in there, but am thinking about Redline 75W90 NS and/or some weight of shockproof like in the WRX. Has anyone else experienced this on the 6MT and what fluid are you running? Tried any others to get rid of it? I believe the 6MT is just a transmission and the diffs have their own fluid, right? So this is all about protecting synchros and allowing them to do their job spinning up/down the gear. Thoughts, comments??? __________________ I am a Commodore PET --- Now get off my lawn you kids...