Hi all, new guy here with a few questions. I've got a new side job of cleaning up some cruisers for the local detachment, the problem being is that they have been not well maintained and previous cleaners just used whatever on them. The door panels have what appear to be either salt residue or a soap residue on it. It looks horrible and will not come off after giving it a good wipe/scrub. It will come right back after drying up. Secondary question being what all do you guys use for a good dirt lifting product for the floors, being cruisers they have rubber/plastic floors. The dirt has gotten in and again due to lack of maintainence has become pretty soiled. I'm currently using just a basic car wash soap until I can find something better. Thanks for all/ any input towards this. I've attached a picture showing what I mean.