I found a new coolant additive at a discount store, nano pro mt nano cool! The label says unlike surficant additives this one uses proprietary nanos to enhance coolant. Sounds like a great idea, but I already have surficant additives added and they advisd against mixing them. I asked the support by email what could go wrong and they just said they haven't tested it and don't reccomend it. Should I really worry about it? What could really possibly go wrong? I want that sweet nano tech in my coolant, but not if it's going to make my car explode without a flush.