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Old 09-23-2013, 09:53 AM   #15
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2013 Interstate Coach
Fort Worth , Texas
Join Date: May 2013
Posts: 279
2013 Interstate 3500, full tanks, A/C running continually, from Fort Worth, TX 626 feet above sea level, 740 miles to Chama, NM, 7871 feet above sea level, uphill all the way mostly on secondary roads (I hate Interstates, they bore me to tears), cruise control set on speed limit (mostly 70 to 75 mph) 19.5 miles per gallon average.

Return trip, downhill all the way and on a slightly different route with more interstates and 4 lane highways, 18.5 miles per gallon. The only explanation I have for the lower mileage on the downhill trip is because of the Interstate and 4 lane highways, the cruise control was set on 75 mph much more of the time.

Make errors otherwise the Great Spirit realizes
you have finished your purpose on earth.

Navajo saying
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Old 10-26-2013, 06:42 AM   #16
3 Rivet Member
2013 Interstate Coach
Flemington , New Jersey
Join Date: Sep 2013
Posts: 162
Central New Jersey to Barre, VT. Essentially all uphill. Empty tanks. 2 adults, 1 child. 360 miles, 18.7mpg. I suspect fuel consumption will be better rolling downhill to NJ tomorrow

When I picked up my AI from Colonial a few weeks back, on my first tankful I got 21 mpg with a half full water tank.

No matter what the AI gets, it's much better than the 9mpg of my old Winnie.

2013 Interstate
2014 Little Guy 5x10 Silver Shadow
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Old 10-26-2013, 07:03 AM   #17
Colonial Airstream NJ
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1968 17' Caravel
Lakewood , New Jersey
Join Date: Oct 2003
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20 mpg
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Patrick Botticelli - Colonial Airstream 1121 Route 88 Lakewood, NJ 08701 - 1-800-265-9019
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