Animal or vegetable oils have very different properties because of problems with diesel quite a lot. The combustion is incomplete. A stumbling can affect the Pistons and valves with white water in the fuel tank and nuet.
Vegetable oil or animal has many problems. Since there are quite a lot of features on diesel. The incomplete combustion engine piston and valve tripping influence is present in the white slag viscosity oil and high viscosity at low temperatures down to start the stick in cold weather.
Vegetable oil or animal with a lot of problems "because it contains various diesel with quite a lot. The combustion is not complete. The machine stumble, affecting piston and valve has the white slag in oil tank and viscous.