P21S10500B Wheel Cleaner Kit

When looking at product reviews I always survy the worst ones. As I remember some of the poor ratings for this product, it seems to me the writers are girly types with delcate fingernails faux and not used to even a little work.Break down an M-16A1, disassemble a Colt 1911, and spit shine some combat boots then you'll have an inkling of what elbow grease really is! Just spray this gem on and knock off the fine dust with a thick stiff brush and rinse! I spent hours with all sorts of deteregents and other wheel cleaning agents with little results. Its expensive, but it works great. Its obvious an engineer is marketing his own product because the package is blah, the bottle is from the '60s, and instructions are "whaaaaaaaaaaaaaat"....but overall the best liquid spray around for BMW break dust. I already recommend this to my Z4 friends already.

It is not possible to be more disappointed in a product.After reading the instructions and putting to use, it was no more effective than plain water.The only substance on the wheels was brake dust, as the car is a new 2016 Porsche Boxster Spyder, and it has never been on anything other that dry sunny roads. After failure of P21S, the brake dust came off easily when I cleaned by hand with a soft rag, the same as it did without P21S.I also purchased the "Gel" P21S which I will use next time. That product will require it sit on the wheels for an hour before spraying off. I hope that works better...or at least some.

After using many different wheel cleaners I can very confidently say this is the best on the market. NO acid in this so it's completely safe for your wheels. Does a great job cleaning. I drive a Porsche Boxster S and keeping it clean is my first priority.I suggest cleaning your wheels once a week since the brake dust that gets on your wheels is acidic and will corrode your wheels over time. I was recommended to try this on a Porsche owners site and I think these people have a very good idea on what it takes to keep a car looking nice.Cheers

I have used this product for years and I love it for its effectiveness and ease of use. The only reason this particular review doesn’t come with five stars is because the sprayer trigger malfunctioned upon first use and I had to buy an inexpensive spray bottle to use the product.

The cleaner works OK but the bottle sprayer is a piece of junk. The sprayer broke withing the first two minutes I used it. I had to pour the cleaner into a different bottle that had a working sprayer.

I've been using P21S wheel cleaner for a decade or more. Nothing else I've tried removes grime and brake dust like this product. It is fast and effective. The only caveats are that it does require some rubbing to fully loosen the dirt, is a fairly caustic chemical and dries very quickly, so as to require quick rinsing. But your wheels will gleam afterwards and powder coating or other protective layers will not be affected.

I purchased this because the old P21S sprayer that I had for years was no longer spraying well. This sprayer never worked well and quit during the third use. The only reason that I gave this 2 stars and not 1 is that I do like the P21S liquid. I will never purchase this sprayer again.

No different than a $10 of any competitor

Great product. Works like nothing else and even smells nice. Price is a little crazy though. I buy it in infrequently because you can really only get 3 cleanings out of a bottle.