I feel that if I can fix this it will help me isolate my coolant loss. Last two times I have driven it I am well below the top row of fins in the Rad. Temp gage stays in the safe zone but I don't know if that is because of the temp sensor being out of the coolant or if it is reading the right temp. New to this engine but I'm learning. I don't see that much loss in the valley so something else is happening. I'm guessing it is overflowing sucking air and burping on every start and cool down and I just want the overflow bottle in the system.