Viscosity may be the same but the chemical makeup (or additives) is different
as is the Ph. Gear oil may be corrosive to some engine parts (copper) while
engine oil has a lot of additives to make it slippery but does not have the
wear endurance of gear oil. Given this I've always wondered why engine oil is
used in the B tranny??
-----Original Message-----
From: owner-mgs@autox.team.net On Behalf Of Skip Kelsey
Sent: Tuesday, July 15, 1997 3:54 PM
To: Larry Moeller; mgs@autox.team.net
Cc: 914@porschefans.com
Subject: Re: gear oil vs oil
Larry:
SAE 90 gear oil is the same wt. as SAE 40 engine oil
SAE 80 gear oil is the same wt. as SAE 30 engine oil.
Cheers:
Skip........At 09:04 AM 7/15/97 -0700, Larry Moeller wrote:
>sae 30 engine oil and 90 gear lube are in fact about the same viscosity,
>the way they are rated is vastly different, thus the numbers are
>misleading
>
>
>
>
|