Oil and filter

[Searcher_imp]

What is a plastic stress range?

Any time you go past the point where the material returns back to it's original shape when you remove the stress you have "plastically deformed" the material. Below this stress and you are still in the "elastic" stress range.
Here is where I got washers on flea bay. 30 cents each shipped.
https://www.ebay.com/itm/10-PC-14MM-OIL-...dY&vxp=mtr

or here is 100 washers for under $12 That should last a while!

[url=https://www.ebay.com/itm/100-PC-14MM-OIL-DRAIN-PLUG-CRUSH-WASHER-GASKETS-P-N-94109-14000-HONDA-ACURA-/332244544395?hash=item4d5b516b8b:g:ldIAAOSwsXFZLZOv&vxp=mtr]https://www.ebay.com/itm/100-PC-14MM-OIL...Ov&vxp=mtr