2000 WS6 M6 Transmission Fluid I'm doing some research and getting really mixed results. If I change the fluids what should I use? Alot of what I've seen says Dexron 3 only. All I can find in the is Valvoline and Penzoil. Is that ok? I've also read don't ever use synthetic. Amsoil ATF says it's Dexron 3 compliant but it's synthetic, so it's all confusing. |
Purists & sheep will always say to use what is stated in the manual or sticker on the box. Others have mates who have heard or know people that are in the 'know' & it's gospel that only what is written is to be used, 'yea right' I use Redline Synthetic, know where near as notchy as dexron, plenty of other quality synthetics out there. :) |
t56's have paper blocker rings stock which dont like synthetic due to being too slippery and not allowing them to work correctly. however companies like mobil 1 and redline claim their synthetics will work with stock t56's and I have not heard with people having a problem with either. My tranny was built and has carbon blocker rings so I can run synthetic.. With that said I run redline d4 and love it. It shifts lifht-years smoother than the mobil dex 3 atf I had in it and also better than the dino castrol atf. I had synchromesh for a while and that was probably the best out of the dino oils... |
I have used Castrol Dex III and ended up switching to Valvoline High Mileage Dex III (It was the only Valvoline trans fluid they had) Anyways I really like the Valvoline so far. Seems to be smoother than the Castrol. I may try out Redline next, but this was cost-efficient and readily available at a time that I needed it then and there. Depending on where you're from, a lot of guys like the Synchromesh but state that it is not good in cold weather, at least until it is completely warmed up. |
Sam Strano, a national class/champion autocrosser has about 250K daily driven and a-x/track miles on his E Street Prepared class 99's T56, and he has used Red Line D4 since day one, despite having the notorious cellulose composite blocker rings in his gearbox, with NO problems whatsoever. So take that into consideration. ;) That being said, I have had HORRID results from trying Royal Purple's Synchromax fluid (grinding/balkiness in EVERY gear), whereas others on here swear by the stuff, so go figure. :confused: |
I like M1 ATF. It's what i will continue to use after break-in with my upgraded T56. I also like being able to buy it from a parts store. |
Synchromesh here. No issues. Seems smoother than before though i am not sure how long it had been since the fluid was changed. |
Originally Posted by axlrose
(Post 17212102)
I'm doing some research and getting really mixed results. If I change the fluids what should I use? Alot of what I've seen says Dexron 3 only. All I can find in the is Valvoline and Penzoil. Is that ok? I've also read don't ever use synthetic. Amsoil ATF says it's Dexron 3 compliant but it's synthetic, so it's all confusing. |
01-02 has the upgraded carbon blocker rings, and are not synthetic fluid sensative when compared to 98-00. |
Originally Posted by SSCamaro99_3
(Post 17219401)
01-02 has the upgraded carbon blocker rings, and are not synthetic fluid sensative when compared to 98-00. I used the black bottle Castrol Transmax Dex/Merc in mine. I've only got about 1200 miles on it but it does feel notchier than the old stuff I drained. |
Originally Posted by dr_whigham
(Post 17219503)
I used the black bottle Castrol Transmax Dex/Merc in mine. I've only got about 1200 miles on it but it does feel notchier than the old stuff I drained. |
Maybe I'll try that then. I just want to exhaust all efforts with "off the shelf" products before I go out and order anything. |
I've been pleased with it, but I also have only been driving on it for about a week. If you do use it I hope that my advice has helped and doesn't steer you wrong! |
Originally Posted by dr_whigham
(Post 17219503)
That's something I did NOT know. My trans was a Jasper replacement from 2006. I wonder what they rebuilt it with? I used the black bottle Castrol Transmax Dex/Merc in mine. I've only got about 1200 miles on it but it does feel notchier than the old stuff I drained. |
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