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2015 F250 Lariat diesel PSD with 3.31 RAR

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2015 F250 Lariat diesel PSD with 3.31 RAR

 
  #16  
Old 03-16-2016, 06:35 PM
boomer85
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Originally Posted by roadrunner01 View Post
With 4 guys and 2,000-4,000 lbs. in the bed I can consistently get 18-20 mpg, but my use is 150 highway, then 8 hrs later 150 highway. Still not bad as I'm 4wd.
Thanks roadrunner. I was kind of figuring about those numbers. The best I've got when driving dad's 15 dually was 17.5-18 but it's 3.73 so I was hoping to see a mile or two better on the highway with the higher gears.
 
  #17  
Old 03-16-2016, 09:12 PM
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Originally Posted by boomer85 View Post
What kind of milage empty do you guys get with the 3.31s? Also tow about the same weight as the OP and found a great deal on a similar truck. Looking to get out of my f150 and get into a 350 for payload , handling, and ease of towing my TT
Here are my MPG stats ('12 F350 4X4, 3:31 RAR):

Overall average = 15.9 MPG
Highway (empty) =17.5 MPG
Towing (14,500lbs) = 9-11 MPG
 
  #18  
Old 03-17-2016, 06:58 AM
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2012 w/same gears. Just took a trip from Lower Alabama to Maryland unloaded. Got 21 MPG on the way up and 20 on the way back. Right smack on the nose. Not a lot of regens either - which was a bit weird.

Towing I get about 14.4 MPG. Around town I get around 16.5.
 
  #19  
Old 03-19-2016, 10:09 AM
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Thanks for the advice guys just drove 10 hour round trip to get the deal I wanted on the truck I wanted yesterday 16 lariat f350 with 3.31 gearing. Drove her over 350 miles to get back home smiling the whole way. One regen and my total trip average was 19.2 mpg couldn't be happier!
 
  #20  
Old 03-19-2016, 10:30 AM
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Nice looking truck!
 
  #21  
Old 03-19-2016, 11:00 AM
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Boomer, congrats and enjoy your new truck !
 
  #22  
Old 03-19-2016, 02:03 PM
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Originally Posted by razehm View Post
Nice looking truck!
Thanks man
 
  #23  
Old 03-19-2016, 02:05 PM
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Originally Posted by Iowa Ford View Post
Boomer, congrats and enjoy your new truck !
Thanks I'm enjoying it so far, hooking up the camper tomorrow time to work it a bit
 
  #24  
Old 03-19-2016, 03:16 PM
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I wonder if there is another reason trucks with 3.31 gears get significantly better mileage than those with 3.55s. I have found that driving style makes a big difference in mileage, up to 3-4 MPG...

Here is my theory: people who buy trucks with the 3.31 gears care more about their mileage than those who buy 3.55s. The primary cause for the better mileage is the driving style difference between a 3.31 buyer and a 3.55 buyer.

I see an similar correlation with commercially used trucks, driven by someone not buying the fuel, vs personal trucks. A F450 used for business seems to get 11-12 MPG, and personally owned ones get 15. (Both unladen pickups, not c&c.)
 
  #25  
Old 03-19-2016, 04:46 PM
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Originally Posted by 2009kr View Post
I wonder if there is another reason trucks with 3.31 gears get significantly better mileage than those with 3.55s. I have found that driving style makes a big difference in mileage, up to 3-4 MPG...

Here is my theory: people who buy trucks with the 3.31 gears care more about their mileage than those who buy 3.55s. The primary cause for the better mileage is the driving style difference between a 3.31 buyer and a 3.55 buyer.

I see an similar correlation with commercially used trucks, driven by someone not buying the fuel, vs personal trucks. A F450 used for business seems to get 11-12 MPG, and personally owned ones get 15. (Both unladen pickups, not c&c.)
Makes sense, I notice that with anything if it's not the person who owns it, it tends to run all day and get rode hard and put away wet
 
 
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