Miata Mailing List: June 1992, Message #62
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   From: (none)
Subject: Re: Re- What is "Redline MTL
   Date: (none)

        Reply to:   RE>Re: What is "Redline MTL?"

> It is GL-4, which is what you want.

I called Red-Line and they recommend MT-90 (75W90) for the Miata, I used to
used the MTL (75W80), which I felt got too thin under extreme
use or when it gets too hot. They are both GL-4 rated. 

Does anyone know a good source for factory stock alloys? Does anyone
have a set to sell?

- Steve.