Additive Bioperformance Boost Claims Decline Does Fuel Gas Improver Isnt Marketers Mileage Prices Promoting Puts Rick Stopping Test
The decline in fuel prices isn't stopping marketers from promoting a gas additive that they say will boost mileage on your car. Rick Sallinger puts BPI, Bioperformance Improver, to the test.
CBS Denver | November 14, 2008
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