My leak is just above the oil filter housing, at first was thought to be a bad o-ring on the filter, then suggested that the filter housing seal was causing the leak, I replaced that myself and it continues. Cleaned the engine off in that area and watched and sure enough, a small amount of oil seeps thru the block and drips on the floor each day. It's only about a drop a day, I can live with that. My experience with JB Weld on engine blocks is not real positive, I would think that down in this lower area where the block doesn't expand and contract as much as around exhaust manifolds would make it a more reliable fix, and maybe next opportunity I get, I might smear some on to see if it works. I can't complain about the car, rebuilt the trans at 150k for $1800, other than that, it starts and runs fine and will for many more years for me. I use synthetic oil, change once a year at 15k miles. Never add oil between changes.