Given ordinary circumstances, I would agree...I would have assumed the oil was low and stopped the engine immediately. As I have already said, I should have cut it off. Yes, I revved it momentarily, less then 2000 rpms and only momentarily. As far as testing....if it came back contaminated, would I spend several thousand dollars to do a rebuild or replace the engine? No, I would wait until when and if I had some issues and address it then. You are correct, I either did or didn't do any damage.......and if the cows do indeed come home, I guess I'll find out then. Thank you taking the time effort to comment, it is appreciated.