The Stovebolt Site Forums The Shop Area Engine Shop Overflow tank

If you can keep oxygen out of the cooling system, in theory it will reduce problems. My heater core is above the engine water level and I like to keep the system 100% full of liquid, I added a simple plastic bottle on the back side of the radiator core support where it is out of site, works like a dream to keep the system full. My engine/cooling system never gets too hot, I have to block part of the radiator in the winter, stock radiator/fan/water pump/180 degree stat.