[brngrhd]

you will loose a little because of evaporation but that is very little. the problem with long life coolant (the red stuff) is that it has small molecules which lets it "leak" internally or externally with such i small amount that it is burned in the engine or evaporates on the block or head. you can see it if you look at your engine and see a pink powder that is dry coolant. as a tech i have seen alot of them leaking around the t-stat housing the fix is to put a new t-stat in. it comes with the gasket on the t-stat you con not get it seperate