Wednesday, January 16th, 2008 AT 9:43 PM
I filled up the coolant resivoir. Next time I checked it, it was empty. Filled it up again. Same thing later. It was empty. I know its going somewhere. Dont think head gasket is bad. It does not run rough. When its idling, it sometimes increases idle and then decreases, like the air conditioner is on, when it is not. Any ideas?

