F-350 true mpg?? - Ford Powerstroke Diesel Forum
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  #1  
Old 01-13-2014, 08:31 PM
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F-350 true mpg??

Wanted to see what everyone was getting for mileage with the 350's. Looking at long wheelbase srw and drw. What kind of loads and gearing? I know they are not made for MPG's but I'll save all the money I can. Coming from a 450 with 4.88's anything is better.
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Old 01-14-2014, 02:56 AM
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2011 f350 stock excab long bed srw. hand calculated. highway 18.5, around home 16, pulling enclosed 2 place snowmobile trailer (some highway and some around the mountain) around 12.
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Old 01-14-2014, 01:14 PM
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Thanks for the reply. 3.31 or 3.55's??
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Old 01-14-2014, 01:26 PM
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sorry, forgot the gearing. 3.55. the truck has 36,000 miles on it, so I'm assuming any differences for a break in period would be past.

Last edited by kdskidoo; 01-15-2014 at 02:38 AM.
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Old 01-14-2014, 02:09 PM
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350 mileage

2013 f350 cclb, srw. 3:55s. 7k miles. 15mpg hand calculated. This is a mix of city/highway. Have not towed my 5th wheel with it yet. Hope it will get better as I put miles on it. Lie o meter is pretty close at 14.6.
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Old 01-14-2014, 03:53 PM
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F350 3.55s 20" wheels. CC LB.
I hand calculate every tank and plot.
No load...short 7 mile commutes...summer is ~15.6mpg. Winter (with warm ups) is about ~14mpg. Summer - road trip - full bed and cab - 19.2 to 20.5 mpg depending on topography.
Towing 14,000# - 11 mpg (tractor on lowboy trailer bumper pull).
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Old 01-14-2014, 07:32 PM
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i have a 13 F350 CCSB, so not exact what you are looking for, but I get around 14mpg in town and about 17ish on highway. I only have 6,800 miles so it may get better with more miles.
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Old 01-15-2014, 07:15 AM
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I have an F250 but it will be the same as the SRW F350's. Prior to level kit and MT's.. Here's a pretty good estimate of what mpg's I'd get at what speeds. 3.55's.

80mph - 16
70mph - 18
60mph - 19
50mph - 20

Towing my 15-16k lb 42' Toy Hauler... 7-8 mpg at 70... I tow rarely (maybe 3 times a year for 500-1000 miles total so far on my 2013) but I think in the future I'll slow it down to 60 mph for safety reasons and to hopefully squeeze some more miles out of my 26 gallon tank.

Mixed interstate, town, decent on the foot pedal, around 15-16 mpg... I have 28,000 miles and hand calculate every tank and my display has never been more than 1mpg off of what the hand calculation is.

With the level kit and heavy MT tires I lost 1-2 mpg depending on the speed.
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Old 01-15-2014, 07:24 AM
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I had a 2012 F350 CCLB SRW with 3.55's and I was getting 18 mpg the majority of the time.
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Old 01-15-2014, 10:20 AM
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I have a 2013 F350 CC LWB 4X4. I have never seen 17 or above it no matter how fast or slow I drive. Had it in Stealership to get their opinion and all they did was drive it 19.4 miles out the road and averaged 16.5 mpg at 60 mph and called it good. Bunch of BS those mechanics get away with. Long story short, mine is getting no where near what the other guys are getting, hence my trip to the stealership. I usually average 12-13mpg running 67-75 mph. More pedal, worse it gets. Towing 9.6 with dual axle tongue pull with Polaris ranger.
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