The Orange stuff will be made using Orange oil which iirc from my days in the lab at autosmart is not acidic but I would primarily use anything like that as a degreaser. Its commonly used in hand cleaners. So if ok for skin I would imagine wheels will be reasonably safe.
Dan
That makes no sense at all? Would you use this on your hands then? its like saying, "Well its made from oranges, so is orange juice, so I guess its ok to drink"
I wonder what orange oil contains, could it be CITRIC ACID? Surely not.
Hot Rims is another product that contains Alkaline salts, so is non acidic, watered down about 4:1 its good to clean and non damaging.