Paul, I agree. We never even drive one untill all cooling systems are rebuilt or replaced with new parts. That is Math 101. Guys who think they can are kidding themselves. Another point was raised much earlier; that 6.3s will end up on the scrap heap. Well, what can I say. That's great. Think of it, all those cheap parts. The last one in the world will be quite valuable. More so than any of the countless Gullwings parked forever in garages. Garage queens, what jokes. Drive them, or sell them. Another one of my theories.