[s-cars] poll for best gear oil

[LL - NY]

I live where winter gets below 20 degrees F regularly.

When I switched to Redline in my GTi, shift action when cold got
significantly better. Same with my 4KQ.

No noticable change in either my 200Q nor my S6, but that is likely due to
the fact that both of those
cars were likely factory fill..;which is specified to be synthetic anyway by
Audi.  That explained why
theere was no noticable effect. It already had synth.

FWIW, I accidentally (before I knew about this list) filled my 200Q's
gearbox with Mobil 1 GL5 gear oil.
Eventually, the slicker GL5 spec made the synchros stop doing their job, the
gearbox got graunchy.
A switch to Redline MT-90 and about 200 miles got things back to normal
again.

So, I'd agree with what Rich has to say, there may have been problems with
Mike's friend's tranny. IMHO,
Redline (or probably any other proper synth GL4 fluid) and the list "saved"
my 200Q's tranny.

On 9/28/07, Taka Mizutani <t44tqtro at gmail.com> wrote:
>
> Along the lines of what Rich said, if your synchronizers are shot, the
> slicker action of Redline will allow you
> to shift faster than the synchros can keep up.
>
> Redline slicked up my Miata's transmission to nearly rifle-bolt precision.
>
> I didn't notice any real difference in my 5ktq or my 200q when doing
> Redline, though.
>
> It didn't really do anything in my old Pathfinder, either.
>
> Some transmissions are a lot more sensitive to cold weather, though- my
> old
> VW GLI was really crunchy until the gearbox warmed up. Same thing with the
> STi- it doesn't want to engage 1st or 2nd very easily in sub-40F weather.
>
> Taka
>
>
> On 9/28/07, Rich Assarabowski <konecc at snet.net> wrote:
> >
> > Reline MT-90 has always worked well for me on every car I've owned,
> though
> > I
> > know some people would say otherwise.  I wonder how much it has to do
> with
> > the condition of the transmission, "kinda sucks" may be indicative of
> > other
> > issues with the transmission.  Why was your friend unhappy with it, what
> > exactly were the symptoms?
> >
> > -- Rich A.
> >
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