best transmission fluid for '04 cobra?

[pgrimlock]

Howdy all, I'm new. Just wanted some expert input on which tranny fluid is best for our car and why you think so. Thanks ahead!

 

[Tom's_03SVT]

Penzoil Synchomesh....

 

[94-98 Trans Am]

yep, thats whats I've always run in a t56. Plus its easy to find at most parts stores.

 

[Tractionless1]

Synchromesh has been linked to damaging a specific part of our transmissions, can't remember which but I have seen it listed here and Modfords. I use Redline D4 as recommended by those who roadrace Cobra's.

 

[Tom's_03SVT]

Synchromesh has been linked to damaging a specific part of our transmissions, can't remember which but I have seen it listed here and Modfords. I use Redline D4 as recommended by those who roadrace Cobra's.

GM has been using the T56 for 18-20 years with GM synchomesh fluid (made by penzoil). Can you provide a link to this failure info?

 

[JedWele]

I am planning on trying amsoil's atf , I heard only good things about it.

 

[pgrimlock]

Someone recommended Royal Purple one time to me. Anyone ever had any experience with this brand? BTW, How many liters do i need to fill it?

 

[About2bite]

Interesting, i'm thinking about changing the trans fluid in mine when I put in my MGW. i have heard nothing but good things about Amsoil's products in general, it'd be nice to see what else is available that cobra owner's have had success with

 

[01cobravortech]

I had used Pennzoil Synchromesh (10k approximately) up until the early part of the winter. The tranny started shifting like crap and feeling real notchy as it got colder. It has shifted like a dream since switching the Castrol Dexron III ATF.

 

[skaarew04SVT]

i use mobil 1 ATF, no issues here. royal purple is good stuff too

 

[Juruense]

I use Mobil1 ATF works great.

 

[oldmodman]

Another vote for Mobil 1

Put it in at 500 miles and replace it everytime I pull the tranny for any reason or try a new shifter.

I was going to try Royal Purple but I had a couple of cases of Mobil 1 from a really cheap sale at Kragen so I kept on using it.

 

[0mineralgrey3]

Mobil 1 synthetic ATF

 

[32vofFury]

Amsoil Atf..........ftmfw!!!!!!!

 

[TheFleshRocket]

i use mobil 1 ATF, no issues here.

++

Mine is about as close to buttery smooth as you can get from a T56.

 

[03yllwguy]

I am planning on trying amsoil's atf , I heard only good things about it.

I switched to it and immediately noticed a degrade in shifting cold or hot. I switched back to stock fluid and the shifting was smoother despite temperature. I wouldn't waste the $$$.
I'm a huge fan of their motor oils and have run them from day one, just not the ATF.

 

[tonypipes]

Royal Purple Syncromax has been good to me.

 

[mlab]

Mobil 1 Syn. recommended by t56rebuilds.com. Works great.

 

[LS1-Larry]

I just had my tranny out............and added Royal Purple ATF..........so far so good!
John

 

[Nutty 5.0]

Personally have good luck with Amsoil ATF...