[Eyeman]

I'm sure you are fine. I'd actually worry as much about overfilling.

It's amazing to me how little damage occurs to engines with low oil or even short term absense of oil. For example I have frequently ran out of oil on 2cycle engines. It will get loud and run poorly. You notice it, add oil, and no issues. Btw, I'm not trying to compare our engines to 2cycle engines. The opposite argument is that's why airplanes and alot of cars use dry sump lube, to keep the oil levels more appropriate under G forces, etc.

As far as oil use, my FBO modded 135 has 47k miles and I've never had to add any oil. I do change my oil around every 7k miles and I'm rarely able to get my car to full throttle safely here on American roads and I'd be scared to track my car..lol. My oil catch can has collected maybe a half cup of oil so far (although it is the Riss Racing model, which does leak mildly at the connections).