Use the formula expose on the graphic:

You can fill the information in miles or kilometers, and gallons or liters the results will be related accordingly.

If you reside in different country, as long as you answer the questions does not matter, you can use kilometers instead of miles, liters instead gallons and any other currency instead of Dollars, the answer will be correct.

Sample: if you drive 1500 kilometers per week, your engine runs for 3 kilometer per liter, and the petrol cost you 1.33 Euros per liter; the answer will be you are saving 798 Euros per month.   

The results also will tell you, based on the miles or kilometers you drive if the System will be a good deal for you.How long will take you to recuperate your investmen?
Just divide $ 2,150/by your monthly savings on the calculator
Hydrogennie Systems Inc. Florida USA
Technical Support Monday-Friday 9:00 AM to 5:00 PM
Phone Number 1-305-879-0679
[Copyright 2002] Hydrogennie] All rights reserved
Fuel Saving Calculator

Fuel Monthly Savings

Miles driven per week:
How many miles per gallon:
Cost per gallon:

Monthly Savings: