From: Anderson Neal F DLPC (AndersonNF@ncsc.navy.mil)
Date: Wed May 08 2002 - 16:34:39 PDT
I've done lots of searching to determine what gear oil to use in my truck's
winch and transmission. These two Mobil Oil sites give some pretty good
data. It looks like GL-4 is correct for the trans and winch, due to the
presence of bronze parts. I found LOTS of postings and some web sites that
say GL-5 oils have twice or more the sulfur EP additives that GL-4 has, and
that these corrode bronze synchronizers, etc. GL-5 is NOT a replace for GL-4
in manual transmissions. The only GL-4 I can easily find is by StaLube, and
it says "light duty" on the bottle. I'm going to try and locate some
Mobiltrans SHC 50 (this represents only my personal opinion). Do any of you
have comments on this oil?
Any of you know if there are any bronze parts in the xfer case?
http://www.mobil.com/mobil_productdata/automotive/grease/trnshc50.html
http://www.mobil.com/mobil_productdata/automotive/grease/lubeshc.html
Jeep list discussion on the subject:
http://groups.google.com/groups?hl=en&threadm=39CCC83E.2F958C26%40home.com&r
num=4&prev=/groups%3Fq%3D%252Bnapa%2B%252B%2522gl-4%2522%26hl%3Den%26selm%3D
39CCC83E.2F958C26%2540home.com%26rnum%3D4
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