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Old 04-11-2010, 06:59 PM   #7 (permalink)
JasonG
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Join Date: May 2009
Location: Charlotte NC / York SC
Posts: 728

05 DMax - '05 Chevrolet 2500HD
90 day: 18.48 mpg (US)
Thanks: 120
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Seems the rear wing could be leveled a tad.
Rear wheel skirts and full moons.
Check for a rear "parachute" bumper, just watch engine temps etc.
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I can't understand why my MPG's are so low..........
21,000lb, 41' Toy Haulers are rough on FE!
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