Originally it promoted palm oil extraction at the household level, but in 2000, when His Majesty the King recommended that palm oil be used to fuel agricultural machines, it was also used in tractors at the center. The introduction proved to be successful on all fronts, as biodiesel does not pose an ignition problem, engines do not give off many fumes, the exhaust does not smell bad, and acceleration is normal. Also, biodiesel is compatible with most diesel-fueled engines without a tune-up. And along with reducing greenhouse gas emissions and air pollution, it makes engines more durable because it better lubricates them.