N0TDADYS_98

Ok.. so my understanding is gm developed this great stuff called syncromesh... not only great in GM cars, but well nearly every car..

GM


Ok... so next on the agenda is Paper Blocking Rings.. To be honest i've never done a tranny rebuild myself.. So i'm actually not even sure what these are but i keep hearing everyone that knows about them cry that you can't use a synthic fluid in those trannies because well. Most syns have some water in them... The paper rings will absorb the water and swell ... based on these types of responses i've gathered swelling = bad...


HOWEVER, if the fluid/oil is silicon based it's ok...

NOW HOW IN THE HECK DO YOU FIND OUT WHAT IT"S MADE OF!!!!!!

I want to use Royal purple or AMS version of syncromesh.. but i idk if i can use them...

lil help please..

I have a 1998..

PS... i will be linking this to my other thread/poll on which fluid is best..

N0TDADYS_98

wow... how about a bump..

Barrier

I changed to Amsoil in my '99 FRC. According to Amsoil it is compatable. I don't know about the others.
Barrier

burbleflyer

I've been running RP in my M6 for about 4 months with no problems. The car shifts much better with it.

JasonR1974

Try calling Rodney at RPM

j99vette

I just put Royal Purple in over the weekend in my 99'. I was going through the same questions. I'm happy with it and I guess only time will tell now.

The 2 versions I have heard
1) the carbon fiber rings are only in 2001 and newer
2) the carbon fiber rings are in all t56 from 1997 and newer

I gave up on who to believe and just put the stuff in.

Ikester

Same here..AMSOIL ATF..great stuff!

leadfoot4

Not being sarcastic, however did you do a search? The reason that I ask, is that about 3-4 weeks ago, there was an extensive discussion of this same question, and one of the guys posted a table, of sorts, which listed what trannies had paper blockers, which oils were most compatible, etc.

N0TDADYS_98

ok.. i went back and did another search.. found the same threads... I found the post you are referring to and again read it.. Nope.. no charts or answer to my question... However i noted that there was this link above the post..

http://www.ls2.com/forums/showthread...threadid=13161

the post it's self is just a repeat of what is found on this board by doing a seach for paper blocking rings..

but if you read down he starts to answer individual questions regarding brands.. Not sure how he was doing his research but seems legit..

Royal purple is non-hydroscopic .. so it's ok to use in all years
mobil one = non-hydroscopic
Redline = hydroscopic

C66 Racing

AMSOIL recommends the AMSOIL ATF for a 1998, which is the same fluid I've been using in my 02 Z06 for years without issue. Many others with older Vettes such as Barrier above have been using this fluid as well and no one has reported any problems to me.

AMSOIL does make a synchromesh fluid, the AMSOIL Synthetic Synchromesh Transmission Fluid (MTF), but probably because GM requires a fluid meeting Dexron III fluids for the T56 applications in GM vehicles, AMSOIL recommends using the ATF vice the synchromesh. Interestingly, AMSOIL recommends the Synthetic Manual Transmission and Transaxle Gear Lube 75W-90 API GL-4 for the T56 in the SRT-10 Viper, again probably because Dodge recommends a gear lube vice an ATF.

peter pan

Been using RP in my FI setup for 5k with no issues and also in the differential and shifting is smoother

vetterlatethannever

0rodney@rpmtransmissions

2000 C5's and older have paper lined blocking rings. 2001 and newer all run compressed carbon blocking rings. Final answer.

WKMCD

So Rodney, what's your recommended fuild for the early M6's?

Thanks

mag red vette

Amsoil has two different ATF's that is compatible with Dextron III, Torque-Drive Synthetic ATF and Universal Synthetic ATF. any suggestions as to which is better in a Corvette M6?

Cozmo

I have been using RP for about 5 months in my 03 MN6 with no problems.

Hammie

Gonna subscribe and await an answer here.

slvr bulit

I switched to royal purple about 3,000 miles ago. No problem in my 98(knock on wood)

vetterlatethannever

Still here too!

ALLEGRO

I'm all ears !