Quote:
Originally Posted by jpalermo
recently changed from stock 20 inch to 19 inch snow set up i now have a drastic change in gas milage is that normal or is there something else going on
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When you say poor, what the before and after mileage?
You will loose a bit of mileage due to higher rolling resistance on snow tires (they are softer afterall).
But if you loose alot maybe your overall rolling diameter is off going from 20 to 19, I assume your tire sidewall ratio is off.