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Ah, the old "splash lubrication" theory.  This was the basis for the
the idea that you would damage your gearbox if you towed the car any
distance with the rear wheels on the ground. I often wondered if the
proponents of this theory thought that the oil "splashed" all the way
back to the tailshaft bearing in the non-OD gearbox.  Nope, there are
passages to send oil back there and return it. Anyway I towed my '69
MGB non-OD behind my motor home all the way from south TX to New England
and back with all 4 wheels on the ground, the driveshaft connected and
the gearbox in neutral with no ensuing problem. Funny how these myths
take on a life of their own.
CR
>
> Anyway, backing up a paragraph or two, to my mind there is a
> significant difference between the standard transmission, which
> uses oil for splash lubrication only, and the OD transmission,
> which uses oil as hydraulic fluid with a planetary gearset, much
> like an automatic transmission. Automatic transmissions are
> extremely sensitive to viscosity â?? I don't think you would have
> much luck with 90W gear oil in an auto trans.
>
>
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<br>
Ah, the old "splash lubrication" theory.  This was the basis for
the the idea that you would damage your gearbox if you towed the car
any distance with the rear wheels on the ground. I often wondered
if the proponents of this theory thought that the oil "splashed" all
the way back to the tailshaft bearing in the non-OD gearbox.  Nope,
there are passages to send oil back there and return it. Anyway I
towed my '69 MGB non-OD behind my motor home all the way from south
TX to New England and back with all 4 wheels on the ground, the
driveshaft connected and the gearbox in neutral with no ensuing
problem. Funny how these myths take on a life of their own.<br>
<br>
CR<br>
<blockquote type="cite"
cite="mid:FBE286443FF24BD99359200685F568E5@paul">
<blockquote style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT:
5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<div>Anyway, backing up a paragraph or two, to my mind there is
a significant difference between the standard transmission,
which uses oil for splash lubrication only, and the OD
transmission, which uses oil as hydraulic fluid with a
planetary gearset, much like an automatic transmission.
Automatic transmissions are extremely sensitive to viscosity â??
I don't think you would have much luck with 90W gear oil in an
auto trans.</div>
</blockquote>
<br>
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