......plugs to find one of them obleterated. He is now trying........
What does 'oblerated' mean? If it means the plug was broken, it gonna cost you lots of $$$
I also had this problem (NGK plug) and I'd taken my car to the BMW dealer for an compression test. The cylinder with the broken plug had less compression, and there was an increase of oil use. (No blue-ish smoke in my mirror, but you could smell it :P )