You might want to rethink using the Water Wetter or anything like it. Per MSDS, it contains Tolyltriazole PolySiloxane Polymer. This stuff can coat the entire cooling system and short of dynamite, it isn't coming out. It has been known to slim a cooling system. Any failure on its part and figure on replacing the entire cooling system- radiator, hoses, any metal or polar pieces, and heater core. It works by reducing the water vapors on hot spots in the engine. It is not intended to be a complete heat reducing agent and does not function as such regardless of user claims. Redline makes some great products. In my opinion, this isn't one of them. For the injector cleaner, I would suggest the Ford recommended Chevron Techron. It won't hurt the emmissions system and has been tested and approved by Ford.
http://www.redlineoil.com.au/Uploads/Downloads/MSDS%20WaterWetter%20Euro%207_01.pdf
Your engine and my .02
Your mileage may vary.