What happens if I overfill the radiator? The level check valve doesn't appear willing to move, and I'm not willing to force it and break something.
I tried to get the level to where the check valve was, but inadvertently filled it to the bottom of the filler cap.
Will the extra just blow out or is it important for me to pump some of the coolant out?
Also, doesn't a standard coolant tester used in automotive world work on the coolant in the bus (the kind with the floating balls)?
Richard