2009 Dodge Ram 2500 Pickup Owner Manual - Page 438

436 MAINTAINING YOUR VEHICLE include cleaning of the condenser fins and a performance test. Drive belt tension should also be checked at this time. NOTE: Use only manufacturer approved A/C System Sealers, Stop Leak Products, Seal Conditioners, Compressor Oil, or Refrigerants. Refrigerant Recovery and Recycling R-134a air conditioning refrigerant is a hydrofluorocarbon (HFC) that is endorsed by the Environmental Protection Agency (EPA) and is an ozone-saving product. However, the manufacturer recommends that air conditioning service be performed by authorized dealers or other service facilities using recovery and recycling equipment. Front Prop Shaft Lubrication - 2500/3500 (4X4) Models Lubricate the front driveshaft grease fitting at each oil change. Refer to the "Maintenance Schedule" in Section 8 for the proper maintenance intervals. Use MOPAR௡ Type MS-6560 (lithium-based grease), or equivalent. WARNING! • Use only refrigerants and compressor lubricants approved by the manufacturer for your air conditioning system. Some unapproved refrigerants are flammable and can explode, injuring you. Other unapproved refrigerants or lubricants can cause the system to fail, requiring costly repairs. Refer to Section 3 of the Warranty Information book for further warranty information. • The air conditioning system contains refrigerant under high pressure. To avoid risk of personal injury or damage to the system, adding refrigerant or any repair requiring lines to be disconnected should be done by an experienced repairman.