Please note: we're the original and only source of our independently validated Green Machines. This is a very specific and exact technology.
Therefore, we cannot guarantee or troubleshoot issues with reportedly similar products sold around the web. Thank you for your understanding.

Refund Policy

Since 2006, we've backed each and every unit we've shipped with our industry-leading guarantee:

We're so confident our WaterGas Green Machines will significantly improve your gas mileage that we offer a FULL money back guarantee. If for any reason you feel the kit does not meet or exceed your expectations, simply return the unit to us within 60 days and we'll refund your full purchase price (less s&h), no questions asked.

If you have a question regarding operation or how we can improve your gas mileage, please contact us anytime.

 Radio Interview

Bill Lang interviewed by the Kentucky Water Fuel Museum

Soon after the interview, we validated those high output results and launched our most powerful and popular systems to-date, the Brown's Gas Injector and our 2nd-generation HydroCharger product line.