Transmission Fluid Question
Jon Davis
jfdavis@epix.net
Tue, 16 Apr 2002 22:15:01 -0500
Vinson Mok wrote:
> Apparently, from the technical pappers that I have read, GL-5 oil that's
not
> GL-4 rated can cause spalling of transmission/bearing surfaces. That is
GL-5 does not cause spalling on steel (note the EP rating). GL-5 actually
protects steel better than GL-4 because it has extra additives that form a
chemical layer on the surface of the steel, preventing metal-to-metal
contact better. The only reason not to use it in manual trannies is the
corrosion of bronze.
Jon Davis