A place where restoration project-type threads can go to avoid falling off the main page in the WIX hangar. Feel free to start threads on Restoration projects and/or warbird maintenance here. Named in memoriam for Gary Austin, a good friend of the site and known as RetroAviation here. He will be sorely missed.
Tue Apr 21, 2009 7:26 pm
I am able to get my hands on some inexpensive 100 mineral oil for my Harvard (which it currently uses) and some 25/60 for my brother's Yak, however, the oil is about 10 years old. The reduced price is because he wants to unload this "old" oil. Does oil have a shelf-life?
Drew
Tue Apr 21, 2009 10:36 pm
Did you read the label?
Wed Apr 22, 2009 6:36 am
Generally the expiration date can be extended by double if you have the oil tested to ensure that it still meets the original mil spec.
Wed Apr 29, 2009 5:46 pm
In 1990 I was involved in locating and removing underground storage tanks a a major airline's maintenance base. We found a large underground tank, nearly full of 60 weight recip engine oil. The oil had been in the tank since the airline converted from DC-7's to 707's in the early 1960's.
We sent a sample to our engineering laboratory where it was found to still meet specifications. We donated it to a local A&P school where it was used without any problems.
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