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n32romeo(at)aol.com
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 Posted: Sun Jul 13, 2008 8:17 pm Post subject: Speaking of oil.... |
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Recently a hangar neighbor sold her airplane and retired from aviation (she is in her 70's) and gave me a couple of cases of Shell 20-50 in CANS (remember 24 quart cases?). My first impulse is that I have always been told there is no life limit on aviation oil, but others have expressed concern with using oil that is 20+ years old. The cans are in good shape. What is the opinion here?
Rich Harrison
AA-1B N1632Romeo
C-182 N52992
The Famous, the Infamous, the Lame - in your browser. Get the TMZ Toolbar Now!
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mark(at)edenfx.com
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| Posted: Sun Jul 13, 2008 9:25 pm Post subject: Speaking of oil.... |
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Here is an opinion from Aeroshell I found on a web sit called forpilots.com. Even this response is over 7 years old but is probably still good…
Mark Miller
Subject: Oil shelf life
From: Tim Helton
Date: Thu Sep 28 13:18:23 2000
A while back there was a discussion about the shelf life of aviation oil....
I asked the folks at Aeroshell and today they responded:
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Tim,
I asked our specialist in aviation about this question. He replied that
while the life of the oil on the shelf may be longer than two years
depending on the storage conditions, we prefer to stick with a two-year
shelf life for everyone's safety benefit. You might consider dumping the oil
in question, especially after seven years. For sure, it should not go into
an aircraft engine.
Thanks for your inquiry and interest in Shell products.
Ed
Ed Brown, for Shell lubricants
EBrown1(at)equilon.com
http://www.shell-lubricants.com
From: owner-teamgrumman-list-server(at)matronics.com [mailto:owner-teamgrumman-list-server(at)matronics.com] On Behalf Of n32romeo(at)aol.com
Sent: Sunday, July 13, 2008 9:15 PM
To: teamgrumman-list(at)matronics.com
Subject: Re: Speaking of oil....
Recently a hangar neighbor sold her airplane and retired from aviation (she is in her 70's) and gave me a couple of cases of Shell 20-50 in CANS (remember 24 quart cases?). My first impulse is that I have always been told there is no life limit on aviation oil, but others have expressed concern with using oil that is 20+ years old. The cans are in good shape. What is the opinion here?
Rich Harrison
AA-1B N1632Romeo
C-182 N52992
The Famous, the Infamous, the Lame - in your browser. Get the TMZ Toolbar Now!
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GrummanDude
Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA
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| Posted: Sun Jul 13, 2008 10:36 pm Post subject: Speaking of oil.... |
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do you mean Shell 15W-50?
It would be my guess that, in a sealed can, the additives probably won't break down.
See if you can find the email for Larry Tasch. So far, he's the only one I know of that I'd trust with a question like that.
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Gary
AuCountry Aviation
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