High Potassium!!
OH NOES!
Funny thing is, car doesn't use any coolant. Level is stable.....
Go figure. I'm coming up on 5,000 miles. I may change the oil and filter and then send the sample into Blackstone to see what's going on. I spoke with one of their reps who seemed very knowledgeable about OCIs, and I think I'm going back to 5,000 intervals vs 3,000 mi filter changes and topping off, then running extended.
PS, it wasnt 12,000 miles on the oil, more like 10,000, but still I'm glad I changed it......