Vegetable oil and bio-oil fuel cannot replace gasoline and purple oil.

Vegetable oil can't be used as automobile fuel and can't replace gasoline, but it can be mixed with diesel oil, also called biodiesel.

Generally, methanol or ethanol fuel is used in automobiles, and methanol or ethanol is mixed in a certain proportion, which has the advantages of clean emission and low cost. But the calorific value is low and the consumption is relatively large.

Vegetable oil fuel is a new type of safe and environmentally friendly fuel that can't be ignited by naked flame. Its calorific value is about 1.2111 kcal, its density is 1.76, its flash point is 81 and its freezing point is -51 degrees. So far, it is the fuel for catering kitchen with high cost performance, which can save about 21%-31% compared with the traditional methanol fuel and liquefied gas.