1. Strength horsepower, more powerful thrust and climbing force with requirement of one more position of shift increased, ultimate speed increased 20 to 40%. 2. Easy to ignite and start and stable in running. 3. Protecting the engine from being dirtied, lengthening its use life and saving more than 50% maintenance expense. 4. Decrease pollution by 70 to 90% as test by environmental agency. 5. Saving 20 to 60% fuel comparing with ordinary consumption of fuel.