Yeah it is not leaking on the ground anywhere. I just added a bunch of coolant and water to the tank and I am going to keep a close eye on it and see if it goes down again. So is the consensus here that I have a leak or is it normal that my coolant was low after five months? It was not empty or leaking out so if its a leak it was a very small one that I couldn't find. Could it be burning coolant instead of leaking it or is this something that I shouldn't be worried about?