MegaSack DRAW - This year's winner is user - rgwb
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Synthetic oil doesn't degrade like mineral oil used to, that's pretty much the main point of it's existence. There's really no need to change it at anything other than the recommended intervals.
5k oil changes here! Our V70 engine that we’ve put 150k of its 200k miles on is clean as a whistle internally.

Posted : 06/12/2022 10:33 am
You still get pass though and slow dilution of the oil.
Posted : 06/12/2022 10:38 am
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