Don’t Fall for Gas-saver Scams

For decades, individuals and corporations have sold devices that claim to improve automotive engine efficiency. Some plug in to the car's 12 V power outlet, and some are wired to the car’s battery, but they all have one thing in common: they don’t work. The reason they don’t work is based in physics, but despite multiple independent tests that confirm that these devices don’t work, they are still popular and are still widely sold at multiple retailers. Jim Anderton wonders why.

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