I've been considering refreshing the oil in my Spitfire's OD-enabled
gearbox. It's a rebuilt unit I got from Quantumechanics a few years
ago. John Esposito recommended simply a non-detergent, single
viscosity 30 weight.
On 28 May 2008 at 23:22, terryrs@comcast.net wrote:
> OD tranny oil: Valvoline 20-50 racing oil.
As I recall, few of the tranny oil recommendations made to this list
over the last several years have mentioned OD at all. For example,
Randall Y. has been a big advocate of Redline oils, if I remember
right, but I don't recall if he has OD. So recommendations like
Terry's always make me wonder:
How do OD clutches work in the presence of high-performance oils,
which is what I suppose these are? No lube engineer, I, so I wonder
how the clutches work in oil of any sort. But specifically I wonder
if these most of recommendations are meant for OD. And of course, if
so why does/did John E. recommend some simpler?
--
Jim Muller
jimmuller@rcn.com
'80 Spitfire, '70 GT6+
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