I plan to go with the Fleetgaurd pre-mix too, reason being is cuz the water is already in there, I will flush with distelled water before the new goes in, Take a look at my swamp cooler on my house and see the white **** on there and this tells me I aint puttin none of that tap water crap in my truck but I do drink it cuz it makes me horney.
Cheers, Kevin