NOT the norm.
Unless you do something to the truck that causes a reduction in required power to get moving/keep moving, you're going to use the same amount of fuel. Fuel does equal power, and unless the power requirements change, you're going to use the same amount of fuel.
As Robert pointed out, buying a performance-enhancing device for mileage gains USUALLY doesn't work out. Some trucks respond favorably to aftermarket tuning, but you HAVE TO drive like you want to get the best mileage you can.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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Wed, February 2nd, 2011, 10:14 AM
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