For what it is worth:
Bought Radiator Cleaner, Frost King Foaming Cleaner, at Lowes today to clean my home Air Conditioner units. Read the label, recommended for auto radiators. So I tried it and it worked well.
Cost me a bit over 5 bucks for a can. Was able to clean my a/c units and 4 vehicles and still have some of the can left.
http://www.lowes.com/lowes/lkn?action=productDetail&productId=129948-1410-ACF19&lpage=none

Bought Radiator Cleaner, Frost King Foaming Cleaner, at Lowes today to clean my home Air Conditioner units. Read the label, recommended for auto radiators. So I tried it and it worked well.
Cost me a bit over 5 bucks for a can. Was able to clean my a/c units and 4 vehicles and still have some of the can left.
http://www.lowes.com/lowes/lkn?action=productDetail&productId=129948-1410-ACF19&lpage=none
