I finally changed my crush washer after 26k miles. Old one wasn't leaking, but I thought what the heck. I do not use a torque wrench on any drain bolts on any of my vehicles. I just snug 'em down and they don't leak and I've never stripped a thread on a drain.

p.s. Last time I went to one of those lube places with my car (15 years ago) they short sticked me by 1 quart of oil. How lame is that?

I guess it helps that I've been turning wrenches for going on 50 years :D