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| Stale-Dated oil? https://www.warbirdinformationexchange.org/phpBB3/viewtopic.php?f=26&t=29507 |
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| Author: | Hvd2Pilot [ Tue Apr 21, 2009 7:26 pm ] |
| Post subject: | Stale-Dated oil? |
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 |
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| Author: | A2C [ Tue Apr 21, 2009 10:36 pm ] |
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Did you read the label? |
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| Author: | RickH [ Wed Apr 22, 2009 6:36 am ] |
| Post subject: | |
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. |
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| Author: | Chief [ Wed Apr 29, 2009 5:46 pm ] |
| Post subject: | |
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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