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All cars are polluters when cold. The way I drive, it takes twice as long for it to get warmed up. However, I'm using half the fuel in that time. So has the overall emissions profile actually changed? I'm burning the same amount of fuel under a cold engine condition as before, just more slowly.
In addition, I'm not burning the other half of the fuel. Even though that portion would be burning cleaner, its emissions are not zero.
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11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
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