I have a big bin full of towels and rags that I use for wiping up messes (oils, mud, grease, etc). I pile all used rags into a separate bin and wash in the machine when full. It usually takes 2 cycles through the machine and they are still dirty. It also leaves behind a nice layer of grease that I have to clean when done. I use laundry detergent and bleach. Recently, I washed a load of towels covered in Bel-Ray fork fluid. That stuff STINKS! When done, I wiped it out and the wife did her usual loads of laundry. Now, everything we own smells like Bel-Ray fork fluid. Nothing better than the smell of fork fluid on your towel when you get out of the shower in the morning. What do you use to clean the towels and how do you wash them?