Thread: Does a fiberglass camper shell/topper reduce or help aerodynamics
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Old 06-17-2014, 06:25 PM   #7 (permalink)
MetroMPG
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Another relatively scientific test: topper hurt efficiency
Tested:
  • bed cap on
  • cap off, tailgate down
  • cap off, tailgate up






1994 Ford F-150 XLT with an 8 foot bed, 5.8L V8, automatic

See: http://ecomodder.com/forum/showthrea...p-off-601.html
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