"Silverado" <kd.eltzroth DeleteThis @verizon.net> wrote in message
news:ev5uj.12057$MY2.3190@trndny07...
>I used Royal Purple 90 weight in my '64 T-10 4spd. It is synthetic.
>
> Just for your info, don't know if it helps.
> Karl
I think he should look in his owners manual and use what it says. Most new
manual transmissions use ATF. Old style gear lube will kill the
synchronizers.
Al
>> Stay informed about: type of tranny gear oil?