How to Generate Deasel Exhaust Fluid

D f is primarily made up of water and urea, the stuff that's in urine. If you were just to take urinless a cow urine, then you'd have to have to synthesize that down somehow. It's much more affordable to create d e f out of synthetic chemicals. I've also heard bat urine being used wrote dog, which i think is cool,. But how cool would it be if you could tell your friends that you did have a batmobile? It's a to bak urine mobile. That's going to tend to be correct in a weird way.