I think the consensus is that the best thing for a manual
transmission is Redline MTL. Any other thoughts?
Andy
Editors, Molecular Vision wrote:
>
> For those of you following the various threads on what oil to put into your
> transmission, you may want to stick to the suggested 20w50 motor oil. I
> have been using Durablend 75w140 semi-synthetic gear oil for about 8 months
> without problem. Shifts were just as easy (and in fact better for reverse),
> and the gearbox sounded quieter. However, because of the recent discussion
> on mgs@autox stating that sulphur compounds might corrode copper
> synchromeshs, I wrote Valvoline, and here is their respsone:
>
> >Mr. Boatright:
> >
> > Thank you for writing us at the Valvoline Company. The Durablend
> >does contain sulphur phosphorus additives, and is GL-5 rated. It is
> >possible for the additive package in a GL-5 to be corrosive to yellow
> >metals.
> >Thanks again.
> >Travis McMillan, Valvoline Tech Services
>
> So, it would appear that Valvoline does not suggest the use of Durablend in
> our transmissions.
>
> Jeffrey H. Boatright, PhD
> Senior Editor, Molecular Vision
> http://www.emory.edu/molvis
> jboatri@emory.edu
> (404) 778-4113 Phone
> (404) 778-2231 FAX
--
Andy Ramm
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