Component
Fluid, Lubricant, or Genuine Part
Crankcase Ventilation Filter
We recommend you use Mopar® CCV Filter.
Fuel Selection
Use good quality diesel fuel from a reputable supplier in your vehicle. Federal law requires that you must fuel this vehicle
with Ultra Low Sulfur Highway Diesel fuel (15 ppm Sulfur maximum) and prohibits the use of Low Sulfur Highway Diesel
fuel (500 ppm Sulfur maximum) to avoid damage to the emissions control system.
For most year-round service, No. 2 diesel fuel meeting ASTM specification D-975 Grade S15 will provide good
performance.
If climatized or diesel Number 1 ULSD fuel is not available, and you are operating below (20°F/-6°C), in sustained arctic
conditions, Mopar® Premium Diesel Fuel Treatment (or equivalent) is recommended to avoid gelling.
This vehicle is fully compatible with biodiesel blends up to 5% biodiesel meeting ASTM specification D-975.
Pickup mod-
els, and Chassis Cab models configured with optional B20 capability, are additionally compatible with 20% biodiesel meet-
ing ASTM specification D-7467.
Diesel Exhaust Fluid
Mopar® Diesel Exhaust Fluid (API Certified) (DEF) or equivalent that has been API Certified to the ISO 22241 standard.
Use of fluids not API Certified to ISO 22241 may result in system damage. You can receive assistance in locating DEF in
the United States by calling 866-RAM-INFO (866-726-4636). In Canada call 1–800–465–2001 (English) or 1–800–387–
9983 (French).
CHASSIS
Component
Fluid, Lubricant, or Genuine Part
Automatic Transmission – 6.7L Diesel with 68RFE
Only use 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 – 6.7L Diesel with AISIN
(AS69RC)
Only use 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 (2500/3500)
We recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle Lubricant in 9.25 Front, 11.5 and 12.0 (Single Rear
Wheel) Rear Axles. Use Mopar® GL-5 Synthetic Gear Lubricant SAE 75W-140 in 12.0 (Dual Rear Wheel) Rear axles. Lim-
ited slip additive is required for limited slip axles.
Brake Master Cylinder
We recommend you use Mopar® DOT 3.
338
TECHNICAL SPECIFICATIONS