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gumby79 · 09-27-2016, 01:57 AM

Any open back with sides will have an eddy. Eddy=fuel economy reduction, you don't get to spin the air for free. I'll be it it would be a smaller eddy ,their for a smaller penalty.
Dreem big chisel down to reality

09-27-2016, 01:57 AM	#89 (permalink)
gumby79 Master EcoModder Join Date: Dec 2014 Location: Butte, Montana Posts: 725 little jona - '91 Dodge D 250 first gen cummins LE Team Streamliner 90 day: 23.4 mpg (US) Little Jona airo modded - '91 Dodge RAM 3/4 TON D 250 2×4 AUTO Pickups Team Cummins 90 day: 18.5 mpg (US) The Salted Hound Jenny. - '87 Dodge Ram 50/D-50 5sp 4X4 90 day: 20.24 mpg (US) Jona Allison aero - '91 Dodge Ram D-250 Le 90 day: 20.76 mpg (US) Thanks: 208 Thanked 427 Times in 278 Posts	Any open back with sides will have an eddy. Eddy=fuel economy reduction, you don't get to spin the air for free. I'll be it it would be a smaller eddy ,their for a smaller penalty. Dreem big chisel down to reality