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Old 12-24-2013, 09:20 AM   #1
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Gas Mileage

We've now had our 2690SF for a year and have accumulated a bit over 15k miles on it, the last thousand or so with the ScanGauge. For the 15K miles, we had 53 fill-ups and averaged 9.2 mpg. We do tend to drive pretty conservatively; mostly 60 to 65 on highways and 55 on country roads. With the Scangauge, we found the most meaningful (to us) read-out parameters were throttle percentage/horsepower/mpg instant/mpg leg average. On our last trip to Fl, we enjoyed the open highways (95 north of Fl); traffic morasses (95 south in Fl) and a lot of central Fl open roads, towing a kayak trailer, and by driving mostly about the 20% throttle position we stayed pretty close to low 60's mph but got 9.6 mpg average for the trip.
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Old 12-24-2013, 10:09 AM   #2
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We have a 2012 2650S and are averaging 9.3mpg overall. I try to travel 5mph under speed limit and find that 62mph is a sweet spot for the engine while on the expressways; but will increase speed if we're becoming a traffic hazard.
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Old 12-24-2013, 10:35 AM   #3
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Are those Fords? If so, that's pretty good MPG. Nice!
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Old 12-24-2013, 10:41 AM   #4
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Yep! I am impressed too. Last Sun I was passed by a Sunseeker that I est was going 75mph. I suppose he will be the one complaining about his mileage............
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Old 12-24-2013, 08:10 PM   #5
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Where did you see that Sunseeker?

I'm a pretty conservative driver too. However, this summer on the way out to Colorado I was tagging two friends in Diesel Class A's. Well needless to say we were pushing it.

I had no problem riding the butt of the big boys. Although I prefer 60-65 only.
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Old 12-25-2013, 11:50 AM   #6
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3170 here, also have owned 2860 and 3120. I averaged 8 mpg. I keep track on a massive spreadsheet.
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Old 12-25-2013, 09:44 PM   #7
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Not a lot of experience but 8.5 mpg pulling a 4000 lb toad and dolly and 9.5 without with a 3120. I am rarely over 60 - 65 mph.
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Old 01-02-2014, 11:30 PM   #8
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Last big trip in our 2011 2450 with e450 chassis was from northern ca to Texas gulf and back, towing a cj7 Jeep. Averaged 9mpg doing 55-70 depending on conditions and state. Average about 10-10.3 on shorter trips not towing. Typically cruise about 62 on highways when not towing.

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Old 01-08-2014, 08:07 AM   #9
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You guys are getting some really great milages per gallon. Or your calculators are off, or my E450/2008/3100ss is really sucking. I normally drive flat lands of Florida between Jacksonville and Gainsville, Lake City, Orlando and 98% of the time pull a little Chevy Colorado and drive 55-60mph (in tow mode) and only get 6-7mpg. I have less than 12K on the unit and it is in great mechanical shape. I would kill for 9-10mpg...just saying.
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Old 01-08-2014, 08:27 AM   #10
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Florida Gas Milage

We keep gas records in a book in RV and have quite a bit of history now so think that its pretty accurate. Also the deviations between fill-ups is within a couple of mpg. Still, our last trip to Fl was in Nov and US95 can do awful things to a guys gas mileage.
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