batavia02ExplorerMay 05, 2016Which 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.
agesilausExplorer IIIMay 05, 2016Take it from a retired chemist: all DEF is Urea dissolved in distilled water. It is all the same.
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