Gee,this brings up a question. If a farmer operates his tractor on the road,say between fields for instance,with off-road fuel,would that be unlawful? In reality there may be an exemption for that,and the mileage accumulated on the road would be so little as to make enforcement silly. But,would it be legal? An even wilder thought comes to mind. How about the guy that has lost his drivers license for a drunk driving ticket using his tractor to drive to work. Would using off-road be technically unlawful? And would anybody even care?