In the May issue of Road & Track's Tech Advice Q&A section someone asked about
the shelf life of conventional and synthetic motor oil . There answer was,
"Our short answer is multiple decades for both types of oil, but when dealing
with longterm questions such as yours, manufacturers won't give an absolute
answer because they haven't done any formal testing over such long time spans,
and they don't have control or confidence in how the product was stored (the
proverbial cool, dark, place)."
----- Original Message -----
From: "Austin Healey" <pajtamuvek at gmail.com>
To: "john spaur" <jmsdarch at sbcglobal.net>
Cc: "Austin Healey list" <healeys at autox.team.net>
Sent: Tuesday, November 8, 2011 2:05:00 PM
Subject: Re: [Healeys] old oil for an old car?
If something had been developed quite well in the car industry, it is oil.
Use hitech stuff here.
Gergo
2011/11/8 john spaur <jmsdarch at sbcglobal.net>
> There are some light oils that come out of the ground ready to use without
> refining after being their for millions of years!
>
>
> At 08:31 AM 11/8/2011 -0800, Roland Wilhelmy wrote:
>
>> I have six gallons of the oil. B that is going to take a very long time
>> to use up in my oiling can :-)
>>
>> -Roland
>>
>> On Tue, 08 Nov 2011 09:05:18 +0100, you wrote:
>>
>> ::Do not use old oil. Although it may have been sealed I would not use it
>> ::in a good engine. It may be allright but the chance is that it has gone
>> ::off and oxidized/deteriorated over the years. If you use good old fresh
>> ::20W50, that will be good enough. If worried use a ZDDP aditive, however
>> ::I never use(d) it.
>> ::Use the oil in your small oiling can for small jobs if you want to be
>> ::frugal.
>> ::Kees Oudesluijs
>> ::NL
>> ::
>> ::
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