Started the car this morning and for about 10 seconds, I thought I was going to lose a rod or something. There was a really loud clatter/rattle sound and it basically sounded like a no/low oil pressure situation. It was rpm dependent, but then it went away. Oil level is fine, car now drives fine. Searched and found a few other people have experienced this. Guess I'll just have to keep an eye on it to see if it happens again. Only thing I can think caused it is that I didn't drive it yesterday but the day before, I washed it so I turned it on and moved it out of my parking space to the washing area and then back. So 2 starts and stops that lasted maybe 30 seconds each. Maybe that resulted in low oil pressure, who knows.