The radiator needed to be flushed as soon as I got it but I do it with most of my stuff and I'm glad I did because there's a lot of metal gave debris. If you are using a soft hose for this thing I would suggest taking a flexible gasket and caulking the outside edge of the hose before adding it to the radiator as it will splatter. After that the radiator basically did what it was supposed to and after that I had no more problems with it. If you need to purchase an additional product for this to work properly, I really don't think it's worth three stars.
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