From: Patrick Jankowiak (eccm@swbell.net)
Date: Mon Apr 14 2003 - 23:30:53 PDT
I was advised by penziol that where GL-1 is specified, especially in
older transmissions, you should use GL-1. It is what was known as
mineral oil. It is available, and does not contain EP additivies which
can attack yellow metal such as synchros etc. The GL-5 I have seen
contains such additives.
As for GL2,3,4, I do not know. There was a thread some time ago
describing a couple of horror stories from those who used GL5 in the
tranny.
I ordered (paid for) a tub of GL1 and GL5 from penziol, and had them
delivered to my mechanic..
GL1 -> transmission, transfer
GL5 -> differentials
Santoken wrote:
>
> GL-1 is no more. It's GL-5 now. Here's how it works, you can use GL-2,
> -3, -4, -5 in any place that requires GL-1. However, you can only use
> GL-5 when GL-5 is required. Likewise, if GL3 is required, you can use
> GL-3, -4, -5, but you cannot use GL-1 or GL-2. It's a supersession
> thing. Or, rather a reformulation thing. You can use that GL# or
> above, but not below what is required.
>
> Kent
>
> James Stead wrote:
> >
> > Does anyone know where to buy gear oil online? I need 80/90 GL-1 for my
> > Deuce tranny, but can't find GL-1 anywhere around here.
> >
> > Thanks,
> > Jim
> >
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