Ferrari Mailing List: Re: 308 mileage

[Hans E. Hansen (FList]

"Super slippery" is not what you want in a tranny.  You need some
friction to get the syncros to work.

See the tech info on the MTL that Dave Handa mentions, as well
as their 75W90NS gear oil at:
www.redlineoil.com

The 75W90NS specifically mentions that it provides better shifting
because it DOES NOT have friction improvers.  But, alas, our
gearboxes combine a tranny - which needs oil that is not
slippery, with a positraction diff - which does need slippery
oil.  It ends up being a compromise.  To make matters worse,
some/many of the gear oils suitable for the positraction diffs
are corrosive to the tranny syncros.  The Redline products are
OK, as are some others.  Last that I heard, Mobil 1 does not
recommend their gear oils for syncronized trans applications.

Hans.

On 10/18/07, philville dejazzd.com <philville [at] dejazzd.com> wrote:
>
>   Michel
>   Have you tried any of the super slippery goo stuff in that tranny yet?
>
>   Does any one on the list have any reccomendation for any that they
>   have used in a gearbox....
>   Philip "Phil" Tegtmeier
>   39 Churchill Drive
>   Elverson Pa 19520
>   610.525.8949
>   And, go to: ... PhilvilleUSA.com