Probably the single biggest mistake when cleaning wheels is to use super cleaners, which can contain harsh abrasives. Mild soap and warm water is sufficient for routine cleaning. After cleaning chrome-plated wheels, you can apply a non-abrasive wax or cream to prevent surface corrosion. If you have clear coated wheels, skip this step. Don't let tire cleaners come into contact with your wheels; and try not to spray cold water on hot wheels. If you go to the car wash, don't let them use steam cleaners or strong chemicals on your wheels. To brighten up your polished wheels (no clear coat) use a polishing cleaner provided by the manufacturer; this requires some real work. To sustain this great look, apply some wax to keep the weather out.
If you have a vibration or pulling symptom, chances are you may have damaged the wheel. Again, go to the tire dealer and let him inspect your wheels. He will place each assembly on the balancing machine and check for run-out (a hop or wobble). If you have a damaged wheel, get the unit repaired immediately to avoid further problems