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Old 03-29-2003, 09:55 PM
Duke2.6 Duke2.6 is offline
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Join Date: Mar 2003
Location: Southern California
Posts: 2,011
I agree. The shelf life of oil in a sealed container is indefinite as long as it doesn't see environmental extremes, especially on the hot side, but keep in mind that oil is continually improved as indicated by the API specification for motor oil and also improvements in automatic transmission fluid such as Dexron III versus Dexron II.

On the subject of maintenance product shelf life, conventional inorganic inhibitor anti-freeze that have silicates only have a shelf life of about two years, but organic inhibitor coolants such as those used by Mercedes and GM (Dexcool) have indefinite shelf life.

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