My wife's LC has had a small leak in the top of the radiator since we bought it. It's small and hasn't caused a problem yet but I get tired of adding a gallon about every 3 weeks however at $450 I have resigned myself to this practice. The leak is where the metal crimps to the plastic top so I don't think it can be fixed. Is there a good aftermarket radiator that is as good as or better than OME and cost less.