<VV> Transaxle lubricants
Sethracer at aol.com
Sethracer at aol.com
Mon Apr 6 23:40:57 EDT 2015
Folks - This is not rocket science. Buy a GL4 lube. If the container says
it works for GL5, don't buy it and don't use it. Many racers have used Brad
Penn lubricants, manufactured in Pennsylvania from Pennsylvania crude oil
stock. So I talked with them on the phone. This is the data they sent - see
below. I forwarded it to Richard for his comment. Also below. The good
companies know what we need and supply it. I am sure RedLine and Amsoil have
appropriate products, I have used products from those manufacturers over the
years as well. This isn't like engine oil where you will be changing it
all the time. Buy the right stuff, put it in and forget about it.
-Seth Emerson
____________________________________
From: rwidman at gmail.com
To: Sethracer at aol.com
Sent: 4/6/2015 4:44:12 A.M. Pacific Daylight Time
Subj: Re: Corvair diffs
Yes, that is what we are looking for. For the benefit of all the Corvair
and other classes I hope that the recent buyout of Brad Penn does not affect
their continuing supply of the oils we need in favor of the higher volume
oils.
_________________________________
Richard L. Widman | CEO
(591-3) 344-2233 / (591-7) 705-2487
_www.widman.biz_ (http://www.widman.biz/)
Widman International S.R.L.
Carretera al Norte km 6
Santa Cruz de la Sierra - Bolivia
On Apr 6, 2015, at 12:20 AM, _Sethracer at aol.com_ (mailto:Sethracer at aol.com)
wrote:
Richard - In the past few years Corvair racers have been impressed with
the oil quality of the Brad Penn refinery. It isn't synthetic, but has
performed well in many peoples cars. They offer a product as a GL4 gear lube.
This is their description:
BRAD PENN – Penn-Grade 1 ‘Classic’ Multi-Purpose GL-4 SAE 80W-90 Gear Oil
is specially blended using high quality PENN-GRADE mineral base stocks and
select additive technologies. It is designed to be used with “yellow”
metallurgy (brass, bronze, copper) and other soft metals used in
synchronizers, bushings, thrust washers and other components typically found in classic
manual transmissions and transaxles. In applications specifying API GL-4
quality lubricants, use of API GL-5 lubricants with higher extreme pressure
additive activity/concentration can damage these ‘soft’ metal components.
It is not intended for use in ‘limited slip’ applications and does not
contain friction modifiers which can interfere with proper synchronizer
performance.
BRAD PENN – Penn-Grade 1 ‘Classic’ Multi-Purpose GL-4 SAE 80W-90 Gear Oil
is recommended for use in such time-honored traditional manual
transmissions as those made by Muncie, Rockwell, NVG/New Process, Borg-Warner, Saginaw
and Ford as well as those used in many imports. It is suitable for use in
Nissan UD trucks, Mitsubishi Fuso trucks, Volvo trucks, and Mercedes Benz
truck manual transmissions as well as the transmissions/transaxles on Nissan
cars and SUVs, Mitsubishi vehicles, and Suzuki vehicles calling for a GL-4
level lubricant. Always consult the equipment owner’s manual for proper
fluid selection.
Not for use in applications requiring API GL-5 quality extreme pressure
(EP) lubricants or where OEM specialized fluids are recommended. Consult Tech
Services with any questions.
So, would this be a reasonable transaxle lube for the Corvair in normal
usage? It meets the GL-4 specs and avoids the extreme pressure additives of
the GL-5.
Seth Emerson
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