I've heard before about filling above the max level in the overflow tank,
I'm am not very sure if a leak is the problem, because i have drive the car with the level in the overflow with o change for several days, 200 miles aprox. since i fill it, that had happen twice, i dont know if I should check other parts, maybe dirty radiator?, a thermostat failure, a sutcked radiator cap?, what could cause the coolant leak not constat just once in a while,
Also the coolant leak just happen during a short period of time, then it stops and does not happen again (until some days, and only if the tank is over the max level)
