^Foam sprayers do use significantly more product... I keep one bottle of wheel cleaner with a typical sprayer and another one with a foaming sprayer. I like the foaming sprayers on highly neglected wheels that really need to be covered with cleaner, but in general I prefer the traditional adjustable sprayers.
^ To be honest... if you keep your wheels clean then you don't need SFE. I never even use a wheel cleaner on my wheels (unless I let them get particularly dirty). Typically I just foam them and they clean up really easily.Nice review, my next wheel cleaner purchase will be Sonax FE.., although recently I used some Groits Garage Wheel cleaner, was pleased with it. My wheels do not get too dirty, so I have no idea how well GG wheel cleaner works on neglected rims.
