update to papers

I don't think I would make sweeping generalizations such as this one:

Quote
Synchromesh transmission oils
General Motors, Honda and others have developed oils that combine the best shift characteristics with
their transmission components for reduced wear. These products in general could classify as GL-4 oils if
they wanted to, but actually when we analyze their components they are very similar to 5W-30 diesel
motor oils, with a few friction modifiers added. The viscosity is closer to an ATF.
They are way too thin
for a Corvair transmission or any other where a SAE 80W-90 or 75W-90 is recommended. I will explain
the viscosity differences below. I have added the viscosity curve and characteristics to the graphs. Note:
just about any diesel motor oil can pass the GL-4 gear oil ratings.
 
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