Dear Sirs,  How far can your can run with one liter of fuel?  Our fuel saving guidance device help you drive most economical way,   accordingly, you can let your car run from 20km to 31km per liter according to driver's maturity in using our product.  This means, we guarantee at least 50% of fuel efficiency from even the poor user', more than 200% to the skillful users.   We hope you could save your money for fuel with our world first fuel saving guidance product by your small money spent for this innovation.  It has taken more than one year ( including legal suit) for our company to struggle its effectiveness and to get official recognition for the fuel saving efficiency from the governmental authorities concerned.  To our great dismay, there are so many products in the world which claim to save fuels , there are also 8 others even in Korean market,  but , we suppose all of them turned out or will prove to be groundless for their effectiveness at last by the expert evaluation authorities concerned.  We stated to market our products again from this April just after closing the successful legal dispute with Korean official organization ( Fair Trade committee)  and we plan to build powerful sales lines in each country for our world first product in these ages of high priced oils   If you are serious and have real interest or real ability to handle ,  Please contact us anytime for more details.  warm regards,  Harry Jean