Will it hurt to run farm diesel instead of road diesel in the dodge Cummings?

 

It will certainly hurt your financial well being. If you get caught with off road fuel in your tank the fines are pretty substantial. There are some rural areas where the states DOT will pull trucks over at random and check.

 

Sure won't hurt the engine. But the Feds and States will get deep into your pocketbook if they dip your tank! Have a friend that has an excavating business and carries red dyed in his bed slip tank. Never has used the dyed in his Ford. Was dipped a couple of months back and was good to go.