This came up somewhere else and I thought it important enough to post. Someone told me they were having a hard time removing grease from their micro fiber after cleaning wheels. Since MF is the Ultimate cloth for removing things like water, polish, paint sealant, and wax, why you would you want to clog up the fibers with grease. save the messy jobs for terri, cotton and shop rags. Keep in mind that because these fibers can absorb so well, you can imagion how well they will absorb grease also. Problem is you know how difficult grease is to remove from anything. Wax, polish and paint sealant comes off easily in the wash, thus you keep your MF towels fresh, new and ready for the next job. Bottom line, use them only on your paint and glass. Gary