Question to the detailing gurus out there... Out of curiousity, I tried using Meguiar's #66 Quick Detailer to remove stubborn dirt on my factory coated wheels. I tried it on a small inconspicuous spot first. It worked. I'm just wondering whether it's safe to continue using this. I know there are products out there specifically for wheel cleaning, but if I can use the same product for different purposes, why not?