So I think I have a coolant leak, only I can't tell where. The only reason I know it's leaking is because the overflow bottle level is going down, but this is slow over a very long (more than a year) time. What would my engine look like with dried coolant? The water pump and thermostat along with all the coolant hoses and radiator where replaced about three years ago. The truck never overheats and the radiator itself has a full tank of coolant.
Should I get it flushed and refilled? Put some stop-leak product in it? Other suggestions?