Isnt it that the radiator should siphon back the coolant from the reservoir tank when the engine cools down?
I'm asking because 2 days ago I topped up my radiator to the base of the filler neck and reservoir tank up to the max mark but when I checked the coolant level this morning with the engine cold the radiator is almost dry(radiator fins visible from the filler neck) while the reservoir tank has coolant way above the max mark.
Is it my radiator cap?thermostat? There is no visible coolant leak from the system.
I'm asking because 2 days ago I topped up my radiator to the base of the filler neck and reservoir tank up to the max mark but when I checked the coolant level this morning with the engine cold the radiator is almost dry(radiator fins visible from the filler neck) while the reservoir tank has coolant way above the max mark.
Is it my radiator cap?thermostat? There is no visible coolant leak from the system.