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-   -   Tremec's New HP-MTF Transmission Fluid (http://www.clubcobra.com/forums/all-cobra-talk/142238-tremecs-new-hp-mtf-transmission-fluid.html)

patrickt 04-17-2019 09:53 AM
Tremec's New HP-MTF Transmission Fluid
 
A lot of us around here have older TKOs. Mine was manufactured in 2006. In Tremec's 2018 Performance Product Guide http://www.tremec.com/anexos/2018_Pe...duct-Guide.pdf it says their HP-MTF transmission fluid is only for Tremec transmissions produced from 2008 to current. So, I wrote them and asked if that was really true or if I could use their new fluid in my 2006 TKO600. Here is their response:

Quote:
Yes, please use the TREMEC HP-MTF in your older TKO. The year reference was for differentiating the 6-speeds, T56 v. TR6060 - the TR6060 wasn't released until 2008.

Just thought I'd pass this along in case anyone gives a shi* and actually goes to the trouble of changing out their fluid.:cool:

Alfa02 04-17-2019 07:40 PM
Thanks patickt, I was just about to change my fluid's as we get to final assy. of my car, since everything is all NOS pieces. Oil from 2006 that has just sat in the gearbox need's to be changed anyway, new fluid, makes a Happy new transmission. Cheers.

hauss 04-17-2019 11:46 PM
What about topping off, can it be mixed with other types of transmission fluids?

patrickt 04-18-2019 09:31 AM
Quote:
Originally Posted by hauss (Post 1460740)
What about topping off, can it be mixed with other types of transmission fluids?
I don't know. But, I looked for threads and couldn't find them, that I remember having some pretty smart folks on here saying you should run the TKO's fluid level a bit below the side fill plug hole and not up to the very edge. You know that TREMEC says it's a "fill for life" type deal and never needs changing at all unless you're racing it hard and see really high temps. I don't know about that though, and changing your transmission fluid is easier than changing your engine oil anyway. OTOH, it's not like my TKO is like my clutch-style Powr-Lok limited slip that actually has disks that wear down and put crap in to the fluid. I would think that any sort of small break-in shavings off the transmission gears should be caught on the drain plug magnet. But, at least now it's pretty easy to figure out what fluid to put back in there. If anybody remembers the threads on not filling your TKO up to the fill hole, they can sound off.

Jim Vander Wal 04-18-2019 12:06 PM
TKO-600 new in 2004, Liberty mods in 2011 or 12. 65,000 miles or thereabouts.

Started w/ Dexron as recommended, ran Cobra Valley's Ultra-Shift, Royal Purple SynchroMax and finally Red Line MTL. I didn't notice any real differences in shifting with the various fluids although others have indicated a difference. Liberty didn't mention any serious wear issues during the rebuild/mods. Planning on continuing with MTL when I complete the current build.

I too have heard about running the fluid a bit low, perhaps a third of a quart low, sorry don't remember the exact amount Supposed to improve shifting due to less fluid for the gears & synchros to turn through.

Jim

patrickt 04-18-2019 02:00 PM
Quote:
Originally Posted by Jim Vander Wal (Post 1460756)
I too have heard about running the fluid a bit low, perhaps a third of a quart low, sorry don't remember the exact amount Supposed to improve shifting due to less fluid for the gears & synchros to turn through.
Well, I know that Ford and Tremec issued a TSB many years ago for the TR3650 clarifying that "The full fill level is approximately 19 mm (0.75") below the fill hole." That can be found here: http://www.stangnet.com/images/stori...s/04-15-06.pdf Now, I don't know how different a TR3650 is from a TKO, but that could be the origin of the urban myth.:cool: It would be helpful if someone would post "yes, I experimented with different levels extensively over the summer of 2010 and found that 1.3" below the fill hole gave me the best performance in my TKO600." But, that probably won't happen....

Jim Vander Wal 04-18-2019 03:29 PM
Patrick,
I did run my TKO-600 a bit low. No formal experimentation, didn't log results. Doubt that I had it at 0.75" low, maybe half of that.
Didn't blow up, didn't notice any real change. I don't really like the way it shifts, fluid isn't going to change that.
Jim

saki302 04-18-2019 08:01 PM
I changed my tko600 fluid to royal purple just because it's what I could get locally.

The engine/trans went in around 2007, I doubt the trans fluid was changed since then (30k+).

It came out looking like I could probably reuse it ��
Oh well, fresh fluid makes me FEEL better anyways.

Shifting is about the same as before.

hauss 04-19-2019 11:40 AM
Smoother shifting
 
Quote:
Originally Posted by patrickt (Post 1460705)
A lot of us around here have older TKOs. Mine was manufactured in 2006. In Tremec's 2018 Performance Product Guide http://www.tremec.com/anexos/2018_Pe...duct-Guide.pdf it says their HP-MTF transmission fluid is only for Tremec transmissions produced from 2008 to current. So, I wrote them and asked if that was really true or if I could use their new fluid in my 2006 TKO600. Here is their response:


Just thought I'd pass this along in case anyone gives a shi* and actually goes to the trouble of changing out their fluid.:cool:
I found out proper clutch adjustment makes all the difference in the world for smooth shifting and trany life.


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