"Stop looking through rose colored glasses Gary. NV is out to make parts at minimum cost, not the best they know how. "
Totally *unlike* Amsoil, whose *ONLY INTEREST* is in making happy and joyous customers - special lubricants for specific applications, carefully meeting or exceeding EACH and EVERY spec? Sorta like GM, DC and Ford are ONLY INTERESTED in making happy and satisfied customers - no matter WHAT they must do to accomplish that goal?
And YOU accuse ME of looking thru "rose colered glasses"? SHEESH!
"New Venture does not want to mesh with the time and effort of checking out the alternatives to the one that they chose. "
And of course, outfits like Amsoil would NEVER do that - try to use the best match in a lube they ALREADY had for a border-line application... NAHHHhh - instead, they would do the "right thing" and spend the time money and effort to develop a fully complying lube that clearly meets ALL those specs - and is clearly marked and certified to do so... Yeah, SUUuuure they would = especially on a product that even you admit is a low-volume product:
"was told that the NV4500 was too small a volume product line to support additional testing of lubricants. "
And THAT was the 5-speed - which sells FAR more units than the 6-speeds do!
So NV wouldn't take advantage of your offer of a lube to test? Tell ya what, GM specifies Dexron III in THEIR 6-speed trannies - waltz on over to GM and make THEM the same offer - in fact offer to PAY them $50,000 to test yer stuff - and I'd be willing to bet THEY would tell you to take a hike as well - those outfits have neither the NEED, time or motivation to do involved lube testing for every fly-by-night outfit wanting into the game - especially when they ALREADY have a proven supplier with a clearly demonstrated ability to provide a spec-meeting lube for their needs - all competing refiners need do is MATCH or EXCEED that spec - Redline has done that - so has Pennzoil - why can't Amsoil do the same?
All Amzoil need do is print right on their bottles, "Meets or exceeds Chrysler spec #MS-9224", and all is well, and THIS debate is over - what's so hard about that? WHY won't Amsoil do it? Seems most of the "discussions" we have here concerning Amsoil in particular revolves around their steadfast inability or refusal to "play by the rules" and obtain the same certifications and provide the same spec lubes the competition does - ya gotta wonder WHY...
Some here will insist it's because "Amsoil is so much BETTER than spec, they can't get certification... " - which is a lot like saying yer doctor is SO much better than all the others, HE can't get a diploma...
It's already been WELL pointed out that lubes designed for BEST operation in ENGINES, do NOT work best in transmissions - the loads and functions are DIFFERENT, requiring differing characteristics - and it would seem to follow that a transmission oil designed for best operation in a transmission would not be best in an engine either, for the same reasons!
Yet Amsoils engine lubes are supposed to excell in BOTH applications? Rose colored glasses? UNH-HUNHhhhh!
"One size" isn't likely to fit all needs - or at least to do it as well as SPECIFICALLY designed and spec'd stuff will... Wanna use a "compromise" product - have at it, chances are you'll get by with it in a reasonable manner - unless you frequently run yer transmission out at the ragged edge of it's ratings in terms of load, heat and torque - but shucks, if you only put yer transmission to moderate usage, Wesson oil might just do the trick for ya too...
Yeah, *I* wear "rose-colored glasses"... .
Wanna debate the issue more - or are we now to name-calling time?:-{}
Attention: TDR Forum Junkies 
not the first time though. . In order to be fair, and wayne you know me, I put Amsoil 75w-90w gear lube in my front differential tonite!!!! I also put 8oz. of prolong in the NV5600 with yesterdays Redline MTL. I use Delo 400 15-40 in my crankcase, and Mopar gear lube with modifier in the rear differential. I have had a six Pack of Bud ( not lite) for me, so all fluid levels are topped off. 
