Quote:
Originally Posted by pickwithaustin
Don't change it before. Why put in fresh oil and then let it sit? Change the oil on the day you bring it out of storage.
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I'm surprised to hear so many people here say this... The better question is why leave dirty, acidic, contaminated oil sit in your engine for 5 months? Put clean in, don't run it, and it's the same as having clean oil sitting in the bottle on your shelf. Then the oil is good to go when you take it out of storage. It doesn't hurt to have clean oil in your engine. It does hurt to have dirty oil sitting in your engine (according to research). I do the same with lawn equipment (tractors, push mowers, etc...)