[Synchro909]

I had one seeping a little while we were away on one of our long trips so I used a little dab of Loctite #3 (aviation gasket) on it. NEVER do that. It took so much oomph to get it undone that the boss holding the drain plug came lose in the sump. The only way I could change the oil (we were about 3,000 miles from home) was to drop the sump, tip out the old oil, refit the sump and refill. That's not the sort of thing I like doing on the run.
In future, I might use a bit of the yellow Teflon tape but no #3!