Only time I ever replaced the crush washer I thought I stripped the threads on the sump when I was tightening the bolt back in. I was refitting the bolt as normal when all of a sudden it gave under pressure, was sure I'd just stripped the sump threads, turned out it was just the crush washer 'crushing'
wasn't sure till the next oil change though. no more changing crush washers for me.
wasn't sure till the next oil change though. no more changing crush washers for me.