See, now the diesel question is the first thing I asked my husband, but he swears he did not do that. Also, don't they make the nozzles in such a way that you can't do that? The engine Temp has been fine - sitting at about halfway between cool and hot same as it has since we got the car 4 years ago.
Also, we had about 600 miles left on the little sticker they put up in the car when they change the oil. It has been about 2 months since the last oil change. No check engine light, no vibration, no smells, no other signs of problem other than the sound.
I suppose the wise course of action is to tow it... It is just rather costly in time and money. My partner and I are both Graduate Students living on TA stipends - so the entire situation is a little nerve-wracking financially. I do see the wisdom in the common sense answer though, sometimes you just need someone to say it to you.