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Originally Posted By: MR_TRANSYND I believe TES-468 was published after I retired. I did the early test design work and test requirements while I was still there. The difference is that the TES-468 specification includes some additional testing, over and above the TES-295 specification...

I believe TES-468 was published after I retired. I did the early test design work and test requirements while I was still there. The difference is that the TES-468 specification includes some additional testing, over and above the TES-295 specification, specifically aimed at protecting Allison...

Sorry. I just saw this. There hadn't been much activity on this thread. I talked to Allison yesterday (9/29) and it is still in review. It's taking forever !!!! I wrote most of the spec before I left in 2009.

Originally Posted By: 901Memphis Is Transynd appropriate for a 4T65E? 901Memphis, Yes. No problem at all with TranSynd in a GM 4T65E.

Originally Posted By: kschachn But not the cracking of the seals, right? It wouldn't have some distinctive analysis signature that would show that, would it? Originally Posted By: MR_TRANSYND If you've got a 2003, then you cannot use DEXRON-VI. It will harden and crack the Viton seals. Use the...

Originally Posted By: T-Stick The owner's manual calls for mercon--which Ford does not make anymore. Ford at first said do not use mercon v, but then they reformulated their mercon v and published a bulletin which states that mercon v replaces mercon--which means that now mercon v is a...

Originally Posted By: T-Stick I know your specialty is the Allison transmissions, but I thought perhaps your familiarity with the Dex/Merc/TES-389 fluid specification might cause you to have an opinion as to whether a Mercon V fluid is as good the original Mercon in an older Mecon specified...

Originally Posted By: MolaKule Originally Posted By: Trav It is strange the fuel contains compounds that can attack Viton. I talked to the manufacturer today. They use different grades and types of Viton for fuel systems. The ones i am using are resistant to these chemicals, methanol and bio...

Originally Posted By: kschachn I agree. I worked as a research technologist for a large corporation, my work was in materials characterization. We used all sorts of fluorinated polymers, never did I see anything that would cause Viton to harden or crack. Originally Posted By: MolaKule I do know...

Originally Posted By: zzyzzx MR_TRANSYND, Have you ever rebuilt a transmission? Nope. Sorry !!

Originally Posted By: JHZR2 I have a question about older specs. Notionally Allison had an ATF spec back in the old Dexron II days as well. I have a number of applications that originally specified Dex Ii, and are old fashioned AT variants (vacuum controlled and use a Bowden cable to adjust...

Originally Posted By: DWC28 Tom, why did you remove the original PAO 100 and replace it with VII in Transyn? DWC28, Do you know this to be the case???? If so, then you know more about the product than I do. It would surprise me (and probably Allison too) if that were true !!!!

Originally Posted By: ledslinger Tom, I have a babied 2003 Chevy Silverado, with a 4.8 and a 4L6O transmission. At 25K miles I did a pan drain, and a cooling line flush with the Mobil version of Transynd. Exchanging about a total of 12 quarts until the fluid changed color. I plan on doing a...

Originally Posted By: MolaKule Quote: I've completed the frictional properties testing as promised and can now say for sure that TranSynd is technically equivalent to DEXRON-VI for use in the 6L80 transmission. So, go ahead and use it without reservation. Hope this helps !! So you're saying...

Originally Posted By: Peted Originally Posted By: clinebarger Welcome Tom!!!! I already run TranSynd in my Allison & 4L60E with great results. I do have one question, I have read on this site that Transynd does not meet Dexron IIIH spec's....Is this true? This got me thinking.. I am at 50K...

Originally Posted By: INDYMAC Welcome Mr-Transynd. For quite some time on BITOG, there's been discussions about CAFE driving the product lines in the automotive lubrication world at the expense of equipment protection. Did you notice any of this going on in the ATF world? INDYMAC, No doubt...

Originally Posted By: TrevorS Originally Posted By: antiqueshell I just want to say that this thread with MR TRANSYND and MolaKule takes most of us long time members back to the good old days when BITOG just started. But you became a member in 2012????? TrevorS, Frankly, I can't remember if...

Originally Posted By: PhillyJoe Welcome. You will be a great source of information for us with your experience. What is your opinion of Valvoline Maxlife ATF? A favorite here; some stay away because it is not licensed even though it meets or exceeds. Are all Dex VI ATFs the same? My opinion is...

Originally Posted By: Peted Originally Posted By: clinebarger Welcome Tom!!!! I already run TranSynd in my Allison & 4L60E with great results. I do have one question, I have read on this site that Transynd does not meet Dexron IIIH spec's....Is this true? This got me thinking.. I am at 50K...

Originally Posted By: dnewton3 Mr Transynd, Since you are no longer employed at Allison, are you bound by any confidentiality agreements? I'd like to know just how many lube makers are OEM licensed for the TES-295. I realize many market them, but how many actually MAKE the fluids. After doing...