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Old 06-24-2011, 05:16 PM   #31
Farmhawk
Seasoned Camper
 
Join Date: Jan 2009
Location: Libby
Posts: 98
M.O.C. #9080
Actually Studebaker did a study back in the '50s and determined there was no difference in mileage. I leave mine on, it keeps things contained and if I'm not packing my genny I use a tonneau cover to secure things.
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