Wouldn't reccomend off road. At our weigh stations in Pa they check and if it's pink the initial fine is $1000.00, which you can't get out of, and then $100 per gallon in the tank, that's arguable. The problem is geting the stuff out of the tank once you use it. From information received it may take as many as 2 to 3 tanks of good stuff to get out the red dye. So guess what, yep, if you get caught during the time your trying to get red of it. Well I think you get the idea.