fuel saver [2008年7月2日，10:34:46]

1. Saving gasoline about 5% ~ 25% on the usage.

2. Prolong the battery's life up to 300%

3. Start the engine more easily

4. Environmental friendly

5. Re older car may have the following additional merits:

- The headlights are brighter

- The air conditioning is colder

- The engine runs more smoothly