Don't forget that motor oil (the 30W option) and gear oil (the 90w option)
are measured on different viscosity scales, I have no idea why. 90W gear
oil is about the same viscosity as 30W motor oil. And hypoid gear oil, as
for differentials, is different again, with special additives to allow the
hypoid gears to live. You don't use differential gear oil (hypoid) in a
transmission, as the gears aren't hypoid cut.
I personally use fully synthetic 90W transmission gear oil, and found it to
be very nice, could actually notice a difference in shifting and synchromesh
action.
Brian
At 12:43 AM 3/2/98 -0500, you wrote:
>hi,
>the book says 30w, the rest of the world says 90w, all i could find is
>80-90w multiweight. i think its OK, does anyone want to speak their piece
>now or forever hold their tounge....?
>
>thank you
>
>alex
>
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