P&S Knock Off Concentrated Wheel Cleaner — a non-acid wheel cleaner concentrate built for high-production shops and fleet work, cutting stubborn brake dust and road grime quickly and safely. It's highly dilutable, so you can dial the strength to the wheel and keep cost-per-use low. Best on rims rather than tires. Non-acid concentrate — dilute 4:1 up to 20:1 to match contamination Cuts stubborn brake dust and road grime from wheels Built for high-volume, fast wheel cleaning Economical — one jug yields many bottles Works by hand or through a ChemTROL fill station Dilute 4:1 to 20:1 depending on wheel condition. Apply properly diluted product to a dry wheel, let it dwell 15–30 seconds (up to a minute for heavier grime), scrub caked-on brake dust if needed, then rinse with high pressure until clean. Available in 128 oz and 5 gallon.Important: Dilute before use and spot-test each wheel surface first to avoid the risk of staining or damage.