To keep your CJ Jeep in optimal running condition, you should periodically check the fluids.

To keep your CJ Jeep in optimal running condition, you should periodically check the fluids. Preventing issues from arising is preferable to fixing the damage once it has occurred. Maintaining the fluids in your Jeep CJ can help extend the life of your Jeep. If you like to perform your own service on your Jeep, then you will need to know the specifications for fluid changes for your make and model of Jeep. When it comes to fluids, one size does not fit all. Jeep CJ fluid capacities can vary between year and model. The following chart will also allow you to easily access the information about CJ axle lubes and transfer case fluid capacities. The following are the fluid capacities and type, including AC system service information, fuel service information, and spark plug specifications. Your owner’s manual will also have this same information, but we’ve compiled it here for quick reference.

Description

Type

Capacities

5.9L (360ci) Engine Oil5W-30 or 10W305 Quarts /4.7 Liters
5.0L (304ci) Engine Oil5W-30 or 10W305 Quarts /4.7 Liters
4.2L Engine Oil5W-30 or 10W306 Quarts / 5.7 Liters
2.5L Engine Oil5W-30 or 10W304 Quarts / 3.8 Liters
5.9L Coolant50/50 Mixture 3 Year Formula IAT (Inorganic Additive Technology)14.5 Quarts / 13.7 Liters
5.0L Coolant50/50 Mixture 3 Year Formula IAT (Inorganic Additive Technology)14.5 Quarts / 13.7 Liters
4.2L Coolant50/50 Mixture 3 Year Formula IAT (Inorganic Additive Technology)10.5 Quarts / 9.9 Liters
2.5L (151 CU "Iron Duke") 1976-8250/50 Mixture 3 Year Formula IAT (Inorganic Additive Technology)7.8 Quarts / 7.3 Liters
2.5L (150 CU AMC) 1983-862.5L (150 CU AMC) 1983-8611 Quarts / 10.4 Liters
GM TH-400 3-Speed AutomaticATF+4 6 Quarts / 5.6 Liters (Service Fill) 13 Quarts / 12.3 Liters (Overhaul Fill)
TF 904 3-Speed AutomaticATF+43 Quarts / 2.8 Liters (Service Fill) 8.5 Quarts / 8 Liters (Overhaul Fill)
TF 999 3-Speed AutomaticATF+43 Quarts / 2.8 Liters (Service Fill) 8.5 Quarts / 8 Liters (Overhaul Fill)
Borg-Warner T-4 / T-5 ManualATF+42 Quarts / 1.8 Liters
Tremec T176/177 Manual80W-90 Gear and Axle Lubricant3.5 Quarts / 1.7 Liters
Borg-Warner SR4 Manual80W-90 Gear and Axle Lubricant1.5 Quarts / 1.4 Liters
Borg -Warner T150 Manual80W-90 Gear and Axle Lubricant1.4 Quarts / 1.3 Liters
Borg-Warner T18 Manual80W-90 Gear and Axle Lubricant3.25 Quarts / 3 Liters
Dana 300 Transfer Case80W-90 Gear and Axle Lubricant2 Quarts / 1.9 Liter
Dana 20 Transfer Case80W-90 Gear and Axle Lubricant1.6 Quarts / 1.5 Liter
Quadra-Trac Transfer CaseQuadra-Trac formula Transfer Case Fluid2.25 Quarts / 2.1 Liters
Dana 30 - Front Axle80W-90 Gear and Axle Lubricant1.25 Quarts / 1.18 Liters
AMC 20 - Rear Axle80W-90 Gear and Axle Lubricant2.4 Quarts / 2.27 Liters
Dana 44 - Rear Axle80W-90 Gear and Axle Lubricant2 Quarts / 1.89 Liters
*Limited-Slip (Trac-lok) Rear Axles require the addition of 118 ml (4 oz.) Limited Slip Additive
*75W140 Gear and Axle Lubricant Recommended For Towing or Extreme Duty Applications
Brake Master CylinderDOT 3 Brake FluidAs Required / To Full Mark
Clutch Master CylinderDOT 3 Brake FluidAs Required / To Full Mark
Power Steering ReservoirPower Steering Fluid +4 (If unavailable ATF+4 is Acceptable)As Required / To Full Mark