The temps your getting are awesome for pulling like that. It does go against some of the dinosaur oil gurus. Most detergent packages work there best at 205 degrees. I don't think I ask what the optimum temp was for the amsoil atf. 200 to even 225 shouldn't permanetly alter the oils propertys. I have seen mineral gear oils that had seen 300. They also looked like water in the drain pan.