Re: Gearbox Oil - Overdrives

[JHarkness@aol.com]

In my TR3 vintage racer, I used Valvoline 85-90 gear oil for years with good 
results.  More recently, Charles Vincent in FL, who rebuilt my overdrive, 
recommended straight 50 racing oil.  I've been using that for the last two 
seasons.  Probably not long enough to really test, but I can feel the 
difference in the OD shift with the lighter weight oil.  A recent 
tear-down/inspection revealed extremely clean internals and a lot less brass 
flakes than I used to see.  FWIW.    John Harkness