Between runs at an autocross this weekend, I noticed that the right rear Koni weeped a drop of oil (no more than a drop) from beneath the nut under the aduster. when I tried to tighten, I found that it was not quite tioghtned all the way. After three more runs, no new leaks. The question is: Did I lose enough oil to warrant a rebuild? The car felt normal afterwards and when I checked today, there were still no leaks.