What's wrong with good old GL-4? It's available at Wal-Mart and Pep Boys.
I've seen the Sta-Lube brand on the shelf in one of those places, and it
was one of the brands that Kastner recommended way back when. Now it's a
generic brand, ie; cheaper.
Bob in Austin
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From: Thomas Leake <tomleake@enol.com>
To: 'triumphs@autox.team.net'
Subject: Tranny Lube
Date: Tuesday, April 22, 1997 7:25 PM
I have gotten very good results discussing this with Lube manufacturers.
Most have tech lines that are availble free (some are even 800 numbers,
look on the web site for your favorite manufacturer). I spoke with a rep
from Amsoil who had some very specific info. He claimed that the Additive
package in GL 4 and GL-5 is the same there is just twice as much in the GL
5. The additive package in GL-5 is only harmful to yellow metals and only
at temperatures above 215 degrees. He did not explain why the same
package in GL4 is not harmful (I assume it is a reaction that does not
occur at lower concentrations or it is slow enough it is insignificant.
The Mobil rep told me not to use the Mobil 1 gear lube I had just
purchased. And that they did not make a GL 4 gear lube.
BTW Redline seems to strongly recommend their GL 4 package (MT-90 and MT)
for most Manual Transmission applications (not just older cars).
Another alternative is straight weight motor oil 40-50w. Multi Viscosity
is not recommended for Transmissions as the gears tend to cut the Viscosity
Index improvers, But why bother when Redline makes an oil specifically for
this application.
Tom Leake
65 TR4 A IRS
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