Transmission fluid you use that IMPROVED shifting over stock

[tankerman1981]

i use mobil 1 Synthetic ATF and I noticed a diffference when I replaced the fluid but everyone has there own opinions and all.... I'll stick with the Mobil 1....

 

[DocSVT]

RP got my vote

It's funny, I used to make fun of people at the track that shifted really slow. Then when I got my cobra I became one of those slow shifting people. It was so hard and notchy. I changed the fluid with sycnhromax by RP and it made a world of a difference. Now I can power shift the car easily[I still won't though] So much easier to shift. I've had it in my car for a year now, over 50 passes down the track, and 46,000 miles later my tranny still shifts like a hot knife through butter. Royal purple synchromax gets my vote for sure.

I am another happy RP synchromax user. I always figured it was just another "snake oil", but it really did help quiet mine down and improve the shifing, oh wait I did add a MGW at the same time ;-)

 

[Fleck 5]

I am going to ttry the Royal Purple. I'll let you know how it goes.

 

[MIKEC501]

i two am going to try r.p. this weekend hope it works.

 

[SpectorV]

I think im going to go RP as well. I may have to order it... I doubt any local vendors carry it.

 

[Fleck 5]

I put the RP synchromax in two weeks ago. The mechanic said that the fluid was either real dirty, or that the previous owner had changed the fluid (I bought the car with 4,500 miles). because it was not the typical stock transmission fluid color.

I did not notice any difference in switching from whatever was in there before to the synchromax. The tranny still shifts rough.

 

[Screamin Cobra]

GM syncromesh
used it in my DSM's, 'n loved it, instant change in the shift feeling (tho is it plesebo? who knows)

ima have to go with that

 

[badboy]

DO NOT run the synthetic ATF in the pre-1997 T-56 units. It will destroy the paper on the blocker rings. And do not run it in a manual trans with brass blocker rings either, because it will ruin those also.

Tremec changed the blocker rings to the carbon fiber type for the 1997 model year and synthetic ATF will not degrade these.

This thread has been going on for ever but I just noticed something. I took my tranny apart to replace the input shaft (2004 T-56) and the blocker ring has paper on it. It is NOT CARBON FIBER. I have been running RP Synchromax for about 3000 miles and the paper seems to be intact. BUT, I am wondering if I should go back to the Dexron III just to be safe??

 

[SSSNAKE04]

Thanks for the tip guys. Royal Purple w/modifier. Smooth as silk.

what kind of modifier did ya use?? lucas????????

 

[palehorse]

Well after reading this entire thread, and parts of it twice, I called Tremec and spoke with a tech person. This is a sumary of what he said. The number 1 recomended transmission fluid for a chevy or ford application is Dexron III. He said the second choice is the GM syncromesh part#12345349. When I asked him about friction modifier he offered no opinion as to it being good or bad, but did indicate it was not necessary.

He did say that under normal driving conditions the transmission fluid is a "fill for life" but when I told him that I was changing the shifter and my car as 28,000 he said it was a good idea to change it.

He did not specifically say that a full synthetic was good, bad or otherwise. He did not say watch out for brand X as it will ruin your transmission. Finally, he said that for every person that has called and said "brand X is the best" he has had another say brand X is the worst thing I have done."

Based on that, I will be going with the GM syncromesh and no friction modifier.

 

[DOHC Holliday]

FWIW, Chrysler ATF+4 is my ATF of choice in most manuals.

 

[palehorse]

FYI I called around to verious GM dealers and got prices that varied from $10.50-$15.50 a quart. I just got Penzoil syncromesh (penzoil makes all the GM stuff as has been previously stated on this thread) for $6.50 at autozone.

 

[YardSpecial]

any updates ??

 

[Fleck 5]

After a couple weeks of using the Royal Purple, I am not impressed. The shifting is probably a little worse. I think I might switch to the synchromesh.

Does anyone know what they are using in the new Z06's?

 

[HawkMech]

Does anyone know if I can pick up a few quarts of the Royal Purple Syncromax at any auto parts store, or is it something that I'll need to order online?

 

[Fleck 5]

Try a speed shop if you have any near you. I tried Pepboys but they do not carry the RP synchromax.

 

[palehorse]

I have been driving around now with the Penzoil Synchromesh but I switched to MGW shifter at the same time. So all I can tell you is the two together shifts much better. FYI-- kind of off topic, but when I drained the original transfluid at 28,000 miles it looked and smelled brand new. I was shocked at how clean the fluid was. It certainly did not need to be changed.

 

[2814v]

I have not had a problem with the stock fluid, a little notchy cold but not bad. When I change mine it will be stock or mobil1, no modifier.

 

[hurtindude]

running royal purple synchromax here. notice no difference when compaired to stock. next change will prolly just go back to stock atf.

 

[phillySVT]

Does anyone know if I can pick up a few quarts of the Royal Purple Syncromax at any auto parts store, or is it something that I'll need to order online?

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