Wayne (one of my favorite folks on this board!) sez:
"This stuff does meet the DC specs no matter if the spec is not on the label. "
Wayne, with all due respect, PROVE IT!
Otherwise, what you claim is nothing more than all the REST of us are posting - a personal OPINION!
Post exactly WHERE Amsoil in any way, shape or form states clearly and without evasion that the 5/30 MOTOR oil they suggest for use in the NV-5600 "meets or exceeds" the DC/NV MS-9224 spec, and THIS discussion is OVER!
You can say Amsoil is great, and I'll agree - I think it's basically good stuff... You can say it has worked well for you in your specific application - no argument there either - but *I* have a problem with folks making statements and claims about Amsoil, or ANY lube, not backed with documentation, independent testing, or certification that backs up those claims!
I'm not talking about various "recommendations" as to "equivelence", or a "good substitute" - but that it is plainly and clearly stated BY AMSOIL that it FULLY meets ALL MS-9224 requirements, PERIOD! We've been down THIS road before too, and those of us who have, know there is NO SUCH claim made by Amsoil - all they say is that they "suggest" it as a acceptable substitute, or words to that effect!
I've been to the Amsoil website, seen their "recommendation" regarding use of the 5/30 motor oil and READ the full list they provide as to the specs met by that 5/30 motor oil and MS-9224 *is NOT on that list!* PERIOD! And they have all the room they want on that website so "lack of space" is hardly the reason they didn't include it...
I have no doubt there are a NUMBER of substitute NV-5600 lubes that meet MANY or MOST of the specs - and would provide the average user with all the protection he really would ever need - but SPECIFIED lubes are selected because they are refined to cover a WIDE range of requirements specif to that particular transmission - some that many owners MIGHT never need - but can any of us be absolutely certain OUR use won't need one of those requirements NOT met by what is merely a "good substitute"?
Lubes must provide proper lubricity, heat tolerance, proper friction capabilities for syncros, anti-oxidants, resistance to moisture contamination, viscosity stability, anti-shear capability - and on and on and ON!
A "good substitute" might actually EXCEED *some* of those individual capabilities - but be rather poor in a few others... Problem is, a specific user has no real way of knowing for sure exactly WHICH of those specs ISN'T properly covered - or how he specifically will be affected - THAT is why the spec is there, and important, so the buyer KNOWS, or can reasonably expect that ALL the neccessary aspects of what HE will demand from that transmission and lube WILL be met, no doubt about it!
The Amsoil 5/30 might well meet or exceed 9 out of 10 of the individual MS-9224 DC/NV specs - but what if one of the 10% *missed* just happens to be the one *I* need most in MY application at some point?
You say the Amsoil 5/30 motor oil is good to use in the NV-5600 - and in most cases, for many users, I'm sure you're absolutely right - but since the Amsoil sells for the same price as the DC stuff that I *know* is strongly recommended, FULLY MEETS spec - and ALSO has been successfully used by many tens of thousands of users, without failure or the slightest risk of any kind, WHY would I want to use a "substitute" - what's the point? What's the proven benefit?
And yeah, past experience has ALSO shown that from this point on, these discussions, like politics and religion, usually turn personal and ugly, so I'm done...
