Quote:
Originally Posted by SIKSUKR
Crush washers can usually be reused a few times but they may leak after that or even the second time.They are soft (aluminum or copper) and made to comform to the seat on the oil pan.
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I have encountered two types of oil drain plug washers.
There are flat ones that, in a pinch, I would consider reusing. I don't know how that situation would arise because draining the oil seems like a fairly deliberate act requiring some level of planning.
The ones depicted in the Amazon link above have two concentric rings joined by an outer wall. Once torqued down, I would expect them to leak if used again. Reusing these is something I've never done.