My thinking is this; the synthetic will last a lot longer if not indefinitely, given of course, the usual filter change. I think the key thing here is the viscosity of the original oil design. Viscosity in this case = design friction parameters for the bands. That's what the brake bands are designed around and I totally agree, that if you change that parameter, you're asking for trouble. If the viscosity is correct to spec however, I think the superior lubricity, low breakdown and sheer strength of the a good synthetic would have a clear advantage.
That's what I meant about not "reinventing the wheel"....I don't want to spend the money on a good synthetic if there is a chance it will do harm. That's why I commented about staying with the MB spec for sure. I've got 218K on my tranny.....no troubles so far, but I'm looking to extend its life even further. Some would say, "Let sleeping dogs lie", but I don't ascribe to that credo, as I want the best fluid in there I can afford (to extend its life). I'm not afraid to try new things, but I want any change thought out very thoroughly.
Kevin
Quote:
Originally Posted by TheGerman
If it has the right rating, it should work.
But you don't need to reinvent the wheel, you right, the normal ATF is more you ever need.
This is right, but it can not work in ATMs. In other things, they have a better lubrication with less friction, but in ATMs, you need an oil with a defined friction and you cant't use a better one, elseif the breakbands would not be able to work.
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