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Old 05-23-2013, 10:09 AM
SwiftDB4 SwiftDB4 is offline
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Join Date: Jun 2007
Cobra Make, Engine: SPF GT40
Posts: 237
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I have a slope nose enclosed trailer. Haven't noticed any difference in mileage over conventional shape. As other poster said wind and hills make the most difference. Be glad you have a diesel. My 460 F250 gets 9mpg towing.
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