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Fuel Efficiency
Vehicle Fuel Efficiency Booster (Fuel Doctor FD-47)
Hammacher Schlemmer has some cool things but the Vehicle Fuel Energy Booster I found on page 29 (December 2010 catalog) has claims that seem unsupported. This is the device that improves a vehicles fuel efficiency by up to 18%. An independent automotive testing service showed the unit increased a vehicle’s average fuel efficiency from...
