OD gear oil- info from Redline

["Mark Gendron" <mister_toad@email.msn.com>]

Last night I asked an Austin Healey buddy what he uses in his O/D box, 
and he said he uses 20w50. He also said that his restorer tells horror 
stories about people who use 90-weight oil in overdrives. Apparently 
it doesn't work too well, even without the hypoid additives. 

Should I explicitly use 20w50 RACING oil, or will any 20w50 do? 

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From: Randall Young <randallyoung@earthlink.net>
Subject: RE: OD gear oil- info from Redline

Mark, listers :
I just got a phone call from Ken at BFE. He's done a 5 year test with 
Valvoline 20w50 Racing in his TR2