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Alternatives to Petroleum
Most of us use petroleum gasoline or diesel fuels in our cars and trucks, but those aren't the only ones available for our use. A growing number of other fuels are becoming more common. Most of us are familiar with ethanol, since it's used as an additive in regular gasoline to help it burn cleaner. Many gasoline brands in Minnesota contain 10% ethanol. Some cars are now available as "flexible-fuel vehicles" (also known as FFVs).
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