I know I bang on about this company a bit but I went to the Top Gear show at the NEC at the weekend and bought some "RESTORE" Wheel cleaner and restorer. They were doing demos on the stand, it looked good so i got some. I tried it last night and it was superb. I just put it on with a paint brush waited...aggitated after about 15 mins then rinsed it off. The results were amazing, No streaks No stains it even got all the corrosion out from the holes where the wheel nuts go, like new I promise.