Gas Saving Devices- Be Independent with Gas

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With the rising price of gas, some areas having risen to more than $3.00 a gallon, I'm getting a lot of questions about fuel saving devices. People want to know which ones work and which ones are wastes of money. These gas saving devices fall into two specific categories, fuel heaters and fuel coolers. Now there is some merit as far as fuel heaters are concerned. A good thing to keep in mind when examining fuel saving devices is that most of these claim major increases in combustion efficiency, something that sounds attractive when you consider the average gasoline engine rarely exceeds 35% efficiency.
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