I put 100,000 Mike's on my
I put 100,000 Mike's on my Forrester before the headgasket went and another 100,000 miles on it after the headgasket went. It cost me a quart of oil ever 500-1000 miles, no big deal. Headgaskets are only an issue if the let coolant into the oil or engine, in my forrester's case it only let oil drip on the ground occasionally.