Understanding Dyed Diesel and Its Role in Home Heating
https://myoffroaddieselmarket.alderbrief.com/posts/understanding-dyed-diesel-and-its-role-in-home-heating
If you heat your home with oil, you might have come across dyed diesel and wondered how it's different from the stuff you put in your truck. Dyed diesel is essentially the same fuel, but with a red dye added to indicate it's not taxed for on-road use. Many rural homes rely on it for their furnaces because it's cheaper than regular heating oil, though you have to be careful—using it in a vehicle on public roads can get you in serious trouble with the tax authorities.