SHARE THIS ARTICLE

The claims for the Fuel Doctor FD-47 sound intriguing. Its packaging says it increases power and reduces emissions, and that “field tests show up to 25% more M.P.G.”

The company’s website says it achieves that “through power conditioning of the vehicle’s electrical systems” and by preventing electrical interference. A TV commercial claims that this “fuel-efficiency booster draws that interference, filters it, then sends back a more stable current.” And all you have to do is plug it into a car’s 12-volt power outlet. So why didn’t Ford or GM think of that?

2011 Chrysler 300 Photo Gallery

Mystery Mercedes SUV Photo Gallery

2011 Hyundai Elantra Photo Gallery

2012 Audi A6 Photo Gallery

Porsche Carrera 911 S Mark 2 Photo Gallery

AutoSpies.com Photo Galleries

If you want to see your photos running on our homepage photo ticker, be sure to upload your photos on the go by sending them to Mobile@AutoSpies.com

Share on Facebook




Read Article


Have You Ever Seen An Automotive

About the Author

Agent009