Quote:
Originally Posted by bob47
I have had no problem reusing the washer, but I also put a small amount of teflon pipe joint paste on the threads of the plug, and a little bit of the paste on the back surface of the head as well as the surface of the washer that contacts the block. With the teflon paste, the plug never seizes up.
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There is a reason for the crush washer vs using Teflon tape. The heat that can be generated at the bottom of the oil pan could exceed the temperature of the Teflon tape specs. Probably wouldn't under normal use unless oil was low and excessive heat was generated. If it does there could be two issues. It gets in the oil, probably not a big issue as it would be such a small amount, and it could start to leak, bigger issue. Teflon tape is great for water lines, even hot water lines, but I would be cautious using it on engine parts. A new crush washer every time it looks really crushed and some oil on the threads should work just fine. Specs claim 260 degrees, but have seen it fall apart at boiling temperature.