Which brand of def fluid.
Was talking to the commercial truck guy at a ram dealer and he said they recommend using mopar brand def fluid in the cummins hd diesel.true or false.
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The DEF pump nozzle at Seven Feathers RV lane in Oregon was so crusted up with white crud that I just hung it back up and stopped up the road at the next Wally World and got a Peak Blue box, just like the other 3 or 4 that I have used in 12K.
