[Roadsters] Changing transmission fluid...UH OH

[Patti Dwinell]

Only GL-4 !!!???  The newer GL-5 oils will eat my syncros!!???
I  just checked the fine print on my bottle of Valvoline 80/90wt gear oil...
that I just used!!... and it's GL-5.  My specs say "GX", but my research
revealed that it's an obsolete code.  The older gentleman at "Orange Engine"
concured it's obsolete,  and recommended this Valvoline, stating it was the
equivalent. 
Is there a difference in what to use between the 1500 and 1600s?
I've used GL-5 in my differencial and steering box, too.
Now what?  Do I need to remove all the GL-5 from my car?
Do I have to flush? and if so, with what?
Yikes!  I guess I should have known that this wouldn't be straight forward.
Patti

--- On Mon, 8/10/09, Andy Cost <andycost at embarqmail.com> wrote:

From: Andy Cost <andycost at embarqmail.com>
Subject: Re: [Roadsters] Changing transmission fluid
To: "'Scott McGillivray'" <scottmcg at gmail.com>, "'Paul'" <9laser3 at bright.net>
Cc: datsun-roadsters at autox.team.net
Date: Monday, August 10, 2009, 3:56 AM

Use only GL-4 gear oil.  The newer GL-5 oils will eat your syncros.
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