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 white crust you guys are seeing are the ammonia crystals that show when the water part evaporates. Completely harmless. Dissolves once wet again.
Don't believe me? Pour a little def on a dark surface and let it dry. You'll get crystal formation pretty quickly.
Don't believe me? Pour a little def on a dark surface and let it dry. You'll get crystal formation pretty quickly.
