Good question. I use questions like this to dig into the manual and wiring diagrams, to try and learn more about the 3.0LHello,
Does anyone know for certain if the Jeep Wrangler Diesel DEF tank and the fluid line to the engine are both heated to prevent fluid freezing in the winter temperatures?
OK, very good news to hear. Thank you.They are heated and the rig starts/runs just fine at -15F in my experience. That was without running my block heater or any added heat to the DEF/SCR system. I will update with any changes when it inevitably sees -20 to -30F this winter.