Joe,

The synthetic Red Line MTL (75W/80W) and MT-90 (75W/90W) products have
both been recommended, with the MTL probably better north, and MT-90
better south.

I think a warm drain and fill is adequate, but I do remember Todd Hill
suggesting an ATF flush for really crudded trannies.

A good on-line source for Red Line: Al Smith's Automotive Products-
http://asap.homeownersmall.com/

Ordered several times from them-pleased with their service

-Steve Frisbee
85 RealWesty
66 Beetle

---"Joe L." <jliasse@TOAST.NET> wrote:
>
>       Having read the wonderous benefits of going synthetic I have
decided
> to change out my gearbox oil. Just to make sure I know what I am
doing I
> have a few questions.
>
>      Do the various grades of synthetic correspond to the same grade
of
> Dyno?
>
>      Would there be any benefit in flushing out all the old
dino-lube with
> some kind of "transmission flush" or is a simple "drain the old,
dump in the
> new" just as good?
>
>      Would those advocating flushing (if any) please also recommend a
> flusher?
>
> Thanks
>

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