I went electric and used the cool down coolant, I still had overheat, I went with a Flex fan and Electric, I also put on a much smaller pully to the water pump, I stay around 179 unless it is a long idle then she may go to 190, if I rev her up she will go back down. I did take off the electric fan to see if that made a differance and it did not, so I put on a trans cooler.