There is no crush washer on the pictured sample. get a copper or aluminum one from the local parts store before reinstalling.
I have screwed the washer off because I couldn't pull it off!right that's just a stock photo, like i said it won't come off on the stock drain plug, we have 2 of these cars and both have the same issue
When i ordered the set of 10 Kia filters for the 2014 Rio we had, it came with 10 aluminum washers.anarky
Get box of 25 Aluminum washers at Autozone. They are thinner - seal as well as the coppers and require less torque to seat.