Can you mix 15w40 motor oil with diesel fuel?

thses 2 can be mixed, but to what reason do you want to mix them. if you are going to mix these and use them in a vehicle you are going to blow smoke from burning oil in deisel, or trash engine from using diluted oil in engine go to www.bluegrassfuel.net , they have all the info one would need to use motor oil as fuel.