I your looking for great tire/wheel cleaner I would recommend Brown Royal from Flashwax. The video for the product do not do justice. It has no acid in it what so ever it will clean the dirtiest rim and tire. The price is very reasonable for a gallon so you can make your own bottle of brown royal or you can buy it in a spray bottle. I have personally used this product and do to this day and its the best tire/rim cleaner i have ever used. But i will test opti gel in the future to see its result.
