Tell everyone. Biodiesel, emulsified diesel, waste oil. Prevent everyone from being fooled! 1. Biodiesel: At present, most biodiesel is produced by soybean oil, animal fat, restaurant waste oil, methanol and an alkaline catalyst. Biodiesel has high freezing point and high density, so it can't be burned alone. Must be blended and used, the cost is too high. Disadvantages: complex process, large equipment investment and easy deterioration. 2. Emulsified diesel oil: emulsifier formed according to the proportion of vehicles can achieve the effects of emulsifying diesel oil, oxidation and combustion-supporting, and the structure of water molecules and oil molecules. It is not the so-called oil dissolved with cosolvent by adding water. Disadvantages: Water molecules and oil molecules are dissolved by cosolvent, which will cause insufficient power and rapid deterioration of oil products! Methanol diesel oil: large consumption, insufficient power, difficult market promotion, difficult to be accepted by customers. And methanol gasoline! Disadvantages: the cost is too high and unprofitable! 3. Wash oil into diesel: It is completely wrong to wash oil into diesel. Washing oil is washing oil, that is, decoloring, deodorizing and removing impurities such as waste engine oil and coal tar from oil with black color and peculiar smell. Can some oil be used after washing? Therefore, it is nonsense to turn washing oil into diesel oil. 4. Diesel oil extracted from plastic oil and tire oil waste engine oil can only be converted by large equipment, and the black oil in small processing workshops has a great influence on the internal structure of the machine. Disadvantages: large investment, complex technology and great damage to the interior of the vehicle. The government suppressed it!