Jeep 2013 Wrangler - Owner Manual - Manual (Page 622)

Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission – If
Equipped We recommend you only use MOPAR® ATF+4® Automatic Transmission
Fluid. Failure to use ATF+4 fluid may affect the function or performance of
your transmission.
Manual Transmission – If Equipped We recommend you use MOPAR® Manual Transmission Lubricant.
Transfer Case We recommend you use MOPAR® ATF+4® Automatic Transmission Fluid.
Axle Differential (Front) We recommend you use MOPAR® Gear & Axle Lubricant (SAE 80W-90)
(API GL-5).
Axle Differential (Rear) 226 RBI (Model 44) – We recommend you use MOPAR® Gear & Axle
Lubricant (SAE 80W-90) (API GL-5) or equivalent. For trailer towing, use
MOPAR® Synthetic Gear & Axle Lubricant (SAE 75W-140). Models
equipped with Trac-Lok™ require an additive.
Brake Master Cylinder We recommend you use MOPAR® DOT 3 Brake Fluid, SAE J1703.
If DOT 3, SAE J1703 brake fluid is not available, then DOT 4 is acceptable.
Power Steering Reservoir We recommend you use MOPAR® Power Steering Fluid +4,
MOPAR® ATF+4® Automatic Transmission Fluid.
620 MAINTAINING YOUR VEHICLE