Are you sure? I couldn't find 'EP75-90' anywhere on Redline's site:
http://www.redlineoil.com/products_gearlubricants.asp?categoryID=6
"EP" means "Extreme Pressure;" these oils have sulfur compounds added which are
known to be problematic with gearboxes containing brass (e.g. Healey
gearboxes).
EP oils are usually used in hypoid differentials.
I've used Redline products for years and am very happy with them.
bs
writeian@aol.com wrote:
> Just read p. 266 of Norm Nock's Tech Talk book. Not only did I highlight the
>warning statement:
> "Do not use EP90" weight oil in Healey gearboxes, I underlined it so to help
>remember and review it in the future.
> A good friend recently experienced a damaged-beyond-use sideshift gearbox in
>his '60 BN7. The net resulting cost (aside from no driving fun for at least
>half a year) will be a $1500-$2000 exchange replacement rebuilt gearbox (from
>Quantum in Connecticut) some day in the future.
> The relevance you wonder ? He'd been using RedLine gearbox fluid-oil EP75-90
>!
> _______________________________________________
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Bob Spidell San Jose, CA bspidell@comcast.net
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