Topping off coolant every 3 months.
Do I have an overly sensitive sensor?
Is the level almost up to the black tab inside the tank when it throws the code?
I saw in winter the coolant level goes down, but in summer it kinda should expand.
I just found that mine is leaking too... Apparently not at the stage when it loses a lot of coolant, but was a couple oz's low. Crap, there goes another $50


