Anyone know of things not to use this cleaner on? I asked my wife to pick me up some simple green and she brought me Mean Green. Im scared of this stuff because years ago i had it ruin an aluminum wheel. It took the coating off the wheel and left it looking streaky. I plan to go ahead and use it as it gets good reviews but i will dilute it by about 8:1 with water. Just looking for some general advice with this stuff. We used the Simple Green for just about everything inside and out.