I drove the last highway and then there was son little traffic jam!! I stopped and after came son type who asked me if I might lose cool water??? Well I then looked and there was a son hose off! But I could quickly build it up!! The problem was anyway that I had kei cool water more and had an urgent appointment!! Then I just bought for the evening had two bottles of cola with me and n carrier beer !!!!!! I then he the cola in the cooler after I shake through the carbonic acid of course and then still after the carrier beer!!!!! Well everything was ok then went on and everything was again in the green area!!! Well my question is now that is already a week ago and everything runs wonderful!!! Should ixh change that anyway ??? Protects the cola from rust or?????????????