Magnetic Fuel saver

Features:
1. Increase mileage(fuel saving of up to 25%)
2. environmental friendly
3. reduces carbon monoxide emission
4. your engine will last much longer
5. uni-directional magnet. It does not interfere with any other electrical device
6. works on gasoline and diesel engine
7. install in less than 5 minutes with no tools needed
8. can easily be transferred to another vehicle
9. maintenance free and one time purchase
10. available for max 18mm diameter
11. the Gauss power of the fuel saver is about 12000 Gs.