THINK GREEN CLEANER RTU (ready to use) is a high quality, biodegradable, concentrated cleaner/degreaser.? It will clean engines, vinyl, white wall tires, stainless steel, aluminum, painted surfaces, floors, walls and counter tops.? It is also an excellent pre-spray for use on extremely difficult cleaning jobs. Think Green is very effective in cold or hot water, high pressure washing of mobile homes, RV?s, trucks, trailers, homes, etc.?? It contains an organic solvent to help dissolve grease, oil, mold, mildew, soap scum, etc.