The issue is water. Water will eventually go through the plastic bottle in sufficient quantity to mess up the oil. If the oil is somehow special (expensive) then I would keep it for about 5 to 7 years and then pitch it. If you do have something you want to keep like this for a very long time put it a 1 gallon metal paint can (empty ones with lids at Home Depot or Lowes) and close it up. Steel is for all intents and purposes impermeable to water.
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70Z28 04B Norwood Forest Green-white Stripes Black DeLuxe Interior
Owned since 1978 - First Car
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