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Old 08-09-2015, 07:57 AM   #1
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2014 27' Flying Cloud
Stowe , Vermont
Join Date: Sep 2009
Posts: 163
Ford, 2015, F250 Stats

2015 - F250 Diesel - 1st Major Trip Stats -
OK, here’s what’s happening on the first leg of our first long trip with our new F250 - crew cab, short bed, 26 gal. tank - cap on truck bed - much gear and generator in bed. In June we did a shakedown trip from Vermont to the Maine coast with 27ft. AS FC & 2, 17ft. kayaks on roof/cap rack. All went well. Now we are headed west to Yellowstone and the Grand Tetons, where we have been many times. We are towing our AS fully loaded but no kayaks on this trip. Our last truck was a 2007 Ram with a Cummings and Jake Brake and 30+ gallon fuel tank. These are some stats that may be interesting to fellow truck geeks. We averaged about 650+ miles per day for the first 3 days going on the Interstate from VT, thru NY, PA, OH, IN, IL, WI, MN, SD, WY. Day one included 3 hours of slower state routes in VT to get to the NY Thru-way. Averaged 13+ mpg - fair weather driving to OH. We found fueling up was a more common occurrence with this small tank, but thought that it got us out to stretch more often. In reality we miss the longer range of the Ram tank. When we hit quarter tank in our F250, we were looking actively for fuel. Day 2 thru OH, IN, ILL and WI we were in the 12.5+ mpg, keeping our speed at about 65 mph. Day 3 was “interesting” thru MN and especially SD. We had a headwind that was up to 35mph. Our mpg tanked at 10mpg, and that was keeping my speed at 70mph, when the posted speed was 80mph. Day 4 the wind subsided as we continued across SD into WY. I found that 68mph the best for my fuel economy, but it was humbling as we were passed by most people going 85+. We were close to 13mpg that day until we hit the Big Horn Mountains and Powder River Pass (Rt 16). Going up the mountains we had the low of 6.2mpg. The diesel had power to spare. The going down was “interesting”, as I experimented on some of the shorter inclines before the BIGGIES - STEEP pitches including hairpin turns at 20mph. This is what I found best. I left the transmission in “Drive” while engaging my “Jake (engine) Brake”. One light tap on the brake dropped me from 6th gear to 5th. Next tap brought me to 4th - next to 3rd - next to 2nd for the steepest sections with the hairpins. The engine did all the work. I didn’t have to brake at all once I was in 2nd gear. Awesome!!! The down mountain and flat roads to Cody WY got my mpg up from the low of 6.2 up to almost 13. An interesting trip so far to say the least. We are at 2327 miles as of Cody with about 90 miles left to go for Yellowstone.

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Old 08-09-2015, 09:03 AM   #2
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2007 28' International CCD
Springfield , Missouri
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Your cruise control also incorporates your engine brake when you are in tow mode with engine brake activated.

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Old 08-09-2015, 10:04 AM   #3
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2016 30' Classic
Apache Junction , Arizona
Join Date: Aug 2011
Posts: 693
I just ordered a 2016 F250 Lariat so I am following this thread. What model do you have and what is your payload? I was concerned about the small fuel tank. Titan fuel tanks has a 50 gallon tank that they say bolts right into place to replace the smaller tank. I have ordered that also with the new truck. I also make frequent stops but do not wish to be staring at the fuel gauge. My current F150 has a 36 gallon tank which is just about perfect.
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Old 08-09-2015, 10:41 AM   #4
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Springfield , Missouri
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I have a 2015 F350 Supercrew 6.7 8ft box it comes with a 36 gal tank.3256 lb payload .A F250 and the F350 have exactly the same ride unloaded as they share the same primary leaf spring.I choose to pay less than $600 more for the F350 due to low F250 payload and the sag factor when hitched to my 28 ft International.

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