Muc-Off Ultrasonic Optimization Bundle. Ultrasonic tank cleaning is the most efficient and effective way to clean those hard-to-reach areas as well as exposed surfaces by removing oil grease and other built-up dirt. Ultrasonic cleaning is a process that uses ultrasound to agitate the fluid the process ensures a deep clean to the surface in ready for lubrication. Following the deep clean chains are submerged in lube sonic particles drive the lube deep into the links creating a high performance chain care and application.