Most automobile air conditioning systems use R12 or the newer R134a refrigerant and a small amount of lubricant to keep the compressor running smoothly, quietly and at the coolest temperature possible. Like most materials exposed to extremely harsh conditions, this lubricant eventually breaks down and loses its beneficial properties. This can lead to noisy compressor operation, increased friction and heat, accelerated wear and even seizure if neglected for too long. Justice Brothers FRIDG-e LUBE™ is a modern high-performance replacement for tired OE air conditioner lubricants. FRIDG-e LUBE™ quiets compressor operation, lubricates seals and even contains a fluorescent tracer dye should your air conditioning system ever develop a tough-to-find pinhole leak. And if your air conditioner is "losing its cool" due to inadequate lubrication and the compressor overheating that soon follows, FRIDG-e LUBE™ may be just what you need to recover maximum cooling efficiency and passenger comfort on those hot summer days.