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Old 05-04-2016, 02:28 PM   #161
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Quote:
Originally Posted by wicked1 View Post
Averaging 18.-19.0 with combo of city highway after two full tanks of fuel and now I am at 1500 miles but I am pretty light in the pedal. I was not getting much better on my 2014 F150 with the 3.5EB so I am happy.


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Still great for a daily driver considering the best I do empty is 16.5. towing avg. 13. But then again mine is almost 10,000 lbs. and surely didn't buy it for fuel mileage.
Enjoy!
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Old 05-04-2016, 03:02 PM   #162
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I get 19-21 when doing all highway but still gentle on the pedal also feel a big difference with drag gone now that I have a tonneau cover


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Old 05-05-2016, 07:51 AM   #163
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I get ~10-12 towing, but I'm only pushing ~68mph and keeping the RPM's in the torque band. When not towing, I can squeeze 18 on a good road trip...now that i have a tonneau cover.. Then again, like others, I didn't buy it (used with only 30K miles and just over 1k hours) for the fuel mileage.
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Old 05-05-2016, 01:03 PM   #164
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Quote:
Originally Posted by wicked1 View Post
Averaging 18.-19.0 with combo of city highway after two full tanks of fuel and now I am at 1500 miles but I am pretty light in the pedal. I was not getting much better on my 2014 F150 with the 3.5EB so I am happy.


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2015 FR Rockwood Roo 23IKSS
On my March 2016 run from Selkirk Manitoba to Toldedo Ohio, about 1200 miles, cruising at 60MPH, I was calculated 20-21 MPG, the lie-o-meter showed about 19 MPH, so a little error to the safe side which is okay. I picked up my TT in Toledo and back to Selkirk. Cruised at 55 MPH, back and was getting 12-14 MPG, lie-o-meter was pretty close to actual. Wind drastically affected my mileage . I am going to do a couple long runs this summer at 60 MPH to get a better feel on MPG.
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Old 05-05-2016, 06:47 PM   #165
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On my March 2016 run from Selkirk Manitoba to Toldedo Ohio, about 1200 miles, cruising at 60MPH, I was calculated 20-21 MPG, the lie-o-meter showed about 19 MPH, so a little error to the safe side which is okay. I picked up my TT in Toledo and back to Selkirk. Cruised at 55 MPH, back and was getting 12-14 MPG, lie-o-meter was pretty close to actual. Wind drastically affected my mileage . I am going to do a couple long runs this summer at 60 MPH to get a better feel on MPG.

I notice if it runs higher in RPM the mpg seems to do better. So far the short trip with my 23ikss Roo I was netting 16.0 mpg but all flat no wind, we will see in two weeks when I go from NJ to MD what I get


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Old 05-05-2016, 07:16 PM   #166
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Keeping it @ or below 2100 rpm is key for me. I usually run @ 62mph and it does best.
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Old 05-05-2016, 09:18 PM   #167
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Keeping it @ or below 2100 rpm is key for me. I usually run @ 62mph and it does best.

Engine load has to also be taken into account.

Back when I had my F150, I would sometimes run a lower gear with higher rpm. Because the engine load was far less, and resulted in higher mpg.

Noticed with my bully dog monitor.


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Old 05-05-2016, 09:44 PM   #168
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Engine load has to also be taken into account.

Back when I had my F150, I would sometimes run a lower gear with higher rpm. Because the engine load was far less, and resulted in higher mpg.

Noticed with my bully dog monitor.


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That's a given. That's why your towing MPG will always be lower than empty MPG.
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Old 05-06-2016, 07:24 AM   #169
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Interesting F350 fuel mileage data

Quote:
Originally Posted by 05CrewDually View Post
That's a given. That's why your towing MPG will always be lower than empty MPG.
Yup
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Old 05-06-2016, 07:49 AM   #170
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I must say though I did love my 2014 F150 Super Crew SB with 3.55 and EB Engine but it's soft suspension doesn't make it great for towing, but it never had trouble pulling my 7,000# trailer up the hills in PA.

Now that I have a 2016 F350 SCREw SB PS 6.7, with 3.55 I have to say this truck is an animal and enjoy towing my little Roo 23ikss much more. Can't wait to get the Fifth Wheel end of next season but at least I am all ready, mine even has factory 5th wheel rails which is nice with the Pucks.


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Old 06-02-2016, 08:04 AM   #171
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Anyone using acetate in their Diesel tanks? I heard using 20oz per 125 gallons makes the get valve last longer and helps my 6.7 PS burn better? Amazon has a gallon for $41.00


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Old 06-02-2016, 07:48 PM   #172
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I had an F150 ecoboost that I put ~51K miles on with about 10k miles of that towing a 32' TT that weighed around 8K. My lifetime mpg average was 13.9.

I'm only about 3k miles into my F350 with 6.7 with about 650 miles towing our new 42' fifth that weighs around 14.5K. So far I'm averaging 14.8 mpg.

There is no difference however in stopping power! The braking with the F350 is sooooo much better. The ecoboost did well with the pulling but the smaller lighter F150 just didn't have the right stopping power.

The rest of my miles on both trucks is highway driving. I drive 300 miles a week for work on average. I never bought the F350 for mpg, but it does much better than I expected unloaded for mpg.
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Old 06-02-2016, 08:38 PM   #173
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I had an F150 ecoboost that I put ~51K miles on with about 10k miles of that towing a 32' TT that weighed around 8K. My lifetime mpg average was 13.9.



I'm only about 3k miles into my F350 with 6.7 with about 650 miles towing our new 42' fifth that weighs around 14.5K. So far I'm averaging 14.8 mpg.



There is no difference however in stopping power! The braking with the F350 is sooooo much better. The ecoboost did well with the pulling but the smaller lighter F150 just didn't have the right stopping power.



The rest of my miles on both trucks is highway driving. I drive 300 miles a week for work on average. I never bought the F350 for mpg, but it does much better than I expected unloaded for mpg.

Went from a 2014 F150 FX4 SuperCrew Short Box EcoBoost. I loved that truck thought it was great as the last PU I owned was in 2006 when I had an Avalanche, F150 was far better. I towed my 7,000# Shast up and down mountains of PA with no trouble.

Got a 2016 F350 SCREW SB 6.7

Didn't buy it for MPG and use it as an everyday vehicle as well. Towing I get 14.7, HWY/CTY 18.5-19.5 and all highway 21-22

I am at 3100 on it and never go over 75 yet not at least until fist oil change at 5,000. I have added Blue DEF from Walmart 2.5 gallons it uses a lot towing but not as much daily driving.

I Love this truck with better suspension, F150 was too soft, Diesel braking is outrageous and just night and day towing.


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Old 06-02-2016, 11:00 PM   #174
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At work we have a couple of f350 diesels and a 2008 f450(used very little) and the 450 only gets 6.5-7 mpg. A customer was in today with a 550 with a farm truck looking bed and a pretty heavy overhead rack. It's a 2014 f550 std cab 2wd. I asked what mpg he got and it was 13.5-14. I started looking for cargo cap. I couldn't find the yellow sticker. May be in glove box or something or rated different because it's HD. I dunno, but I was impressed. That would be a 5er pulling sucker.


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