technical specifications Ram 4500 Chassis Cab 2018 Owner's Guide

Chassis
ComponentFluid, Lubricant, or Genuine Part
Automatic Transmission (6.4L Engine with 66RFE
Transmission) (For Diesel Engine See Diesel Supple-
ment) Use only ATF+4 Automatic Transmission Fluid. Failure to use
ATF+4 fluid may affect the function or performance of your
transmission. We recommend Mopar ATF+4 fluid.
Automatic Transmission (6.4L Engine with AS66RC
Transmission) Use only Mopar ASRC Automatic Transmission Fluid or
equivalent. Failure to use the proper fluid may affect the
function or performance of your transmission.
Transfer Case We recommend you use Mopar BW44-44 Transfer Case Fluid.
Front and Rear Axle Fluid (4500/5500) We recommend you use GL-5 SAE 75W-90 Synthetic (MS-9763).
Limited slip additive is not required for Limited-Slip Rear
Axles.
Brake Master Cylinder We recommend you use Mopar DOT 3 and SAE J1703. If DOT
3 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.
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TECHNICAL SPECIFICATIONS 437