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Old 11-23-2017, 11:16 PM   #18 (permalink)
Master EcoModder
gumby79's Avatar
Join Date: Dec 2014
Location: Butte, Montana
Posts: 714

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 24 AUTO
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: 18.55 mpg (US)
Thanks: 206
Thanked 416 Times in 269 Posts
Phil Knox(AKA Aerohead) 2nd that nomination.
As driven to Darco.

Without function form is void.

My 91.5 D250 Johna started at 18.6 avg mpg (16.xx low- 23.1high)
Added the Aero Tonto and it bumped to 24avg(16low towing - 29.3 high) .
When i drop to 22mpg I am looking for something broken on my truck or a low tire.
It must still be a truck ... I define a truck as a rig that can; 1 carrie a full size fridge standing up, 2 carrie 1 cord of green oak(3000lbs per National Forest Wood permits) , 3 tow a trailer of at least 10,000lbs a minimum of 1000mi , as daily driven(nothing to remove to preform the task)Other wise its just a glorified station wagon with limited seating.
The cap is also desined to act as a fairing when towing high profile trailers ( box, RV TT, or 5th wheel).
now that the wind tunnle data is in, and I have almost 100k mi of data with the Aero Tonto. I can start adding more of the total kit, to reach my ambitious goal of 40mpg.
Yes my fule log is out of date... odo broke Dec '16 but periodically check with GPS .
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1st gen cummins 91.5 dodge d250 ,HX35W/12/6 QSV
ehxsost manafulld wrap, Aero Tonto
best tank: distance 649gps mi 24.04 mpg 27.011usg
Best mpg : 31.32mpg 100mi 3.193 USG 5/2/20

'83 GMC S-15 Jimmy 2door 2wd O/D auto 3.73R&P
'79 Chevy K20 4X4 350ci 400hp msd custom th400 /np205. 7.5-new 14mpg modded befor modding was a thing
87' Hyundai Excel
83 ranger w/87 2.9 L FI2wd auto 18mpg on the floor
04 Mitsubishi Gallant 2.4L auto 26mpg
06 Subaru Forrester XT(WRX PACKAGE) MT AWD Turbocharged 18 plying dirty best of 26mpg@70mph
95Chevy Blazer 4x4 auto 14-18mpg
04 Chevy Blazer 4x4 auto 16-22mpg

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The Following 3 Users Say Thank You to gumby79 For This Useful Post:
aerohead (11-25-2017), BamZipPow (11-24-2017), niky (02-07-2018)