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Fuel mileage?

  #16  
Old 10-07-2018, 09:07 AM
Readgriff
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I just replaced the air filter 23,000 miles $50 plus shipping from Diesel Filters. Com ouch.
Im still getting the overall fuel mileage less than 16mpg hiway 65 mph or less.
Something has changed in the last 5,000 miles or so.
Trying to figure what changed.
Thanks

 
  #17  
Old 10-07-2018, 10:50 AM
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I enter the fuel purchases in Fuelly beside just looking at the display. And for most they are pretty consistent in matching.
With a 48 gallon tank. It is rare that I can drive a fuel tank in the same method. So I have to use the display to see what 100 miles of hiway at 65mpg equals.
Because tomorrow, I'll hook the horse trailer up and get 10 mpg

Readgriff. Around here, Winter fuel show ups October 1st. And I suspect it really starts showing up mid September as fuel stops fill their underground tanks.
I always loose mileage when I switch to winter grade.

I buy two oil, 1 air and 1 fuel filter from Diesel Filters Online when I run out, Then I switch out the air and fuel every other oil change. And yeah, Ouch! I probably should increase it an extra filter and hit the amount that gets free shipping.
But when I did that with my 2015 truck, Ford changed the filters and I had filters sitting on the shelf when I bought my 2017 truck.
 
  #18  
Old 10-08-2018, 07:07 AM
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Originally Posted by Readgriff View Post
I just replaced the air filter 23,000 miles $50 plus shipping from Diesel Filters. Com ouch.
Im still getting the overall fuel mileage less than 16mpg hiway 65 mph or less.
Something has changed in the last 5,000 miles or so.
Trying to figure what changed.
Thanks
This may not apply, but I thought I'd mention it anyway. Your engine has to be completely warmed up to get the full MPG. At 65mph cruise, I get 14-15mpg until my operating temps are at 200+. Then the MPG bumps up to around 18-20.
 
  #19  
Old 10-08-2018, 07:10 AM
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Painted Horse
I have the same truck as you 2017 CCLW 6.7 .
what is your avg fuel mileage for a hundred miles avg.60 to 65mph?
Im only getting say 15 mpg right now
I also order fuel filters and oil filter together to save on shipping
But $50 for a air filter is still allot.
Thanks
 
  #20  
Old 10-08-2018, 09:48 PM
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I kinda think of my truck as 15 mpg avg.
If I go for a long drive ( empty) and set the cruise and leave it. I can get 17 mpg at 75 mph

I just finished a school that I built that was 45 miles one way commute. If I set the cruise and drove out at 65 mph both ways. I could see 18 sometimes 19 mpg. for the 90 miles round trip.
If traffic really cooperated and I didn't have an Active Regen, I might break 20 mpg. But that was rare. It only takes one or two Active Cruise events where the truck slows for traffic ahead and then speeds up as I change lanes to affect my mileage.

But I would answer your question. For most 65 mph drives I would expect 18 mpg as an average
For most day to day drives with a few stops signs and stop lights, It 15


My 2011 truck, ( which was stock height, Stock Michelin 275 tires etc). I could set the cruise and drive 14 hours at 80 mph and average 18 mpg for the 14 hour trip.
 
  #21  
Old 10-09-2018, 06:20 AM
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Thanks for all of your replies
I’m thinking of trying some PM-22 motorcraft fuel additive to see if it makes a difference.
 
  #22  
Old 10-09-2018, 07:53 AM
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You can try it but if PM22A did anything for MPG, I would be surprised. I have used that in my truck most tanks and the only reason is hopefully it's keeping the 2011 fuel system healthy. I have run several tanks without PM22A and it doesn't make a difference. Any slight changes are simply driving differences.
 
  #23  
Old 11-22-2018, 09:37 AM
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  #24  
Old 11-22-2018, 10:58 AM
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You low elevation flat land guys always get better mileage than us who live at mile high and drive over 10,000 foot mountain pass.
 
  #25  
Old 11-22-2018, 12:22 PM
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Originally Posted by Painted Horse View Post
You low elevation flat land guys always get better mileage than us who live at mile high and drive over 10,000 foot mountain pass.
LOL! Ain't that the truth. But I'll take mountains any day over a beach.
 
  #26  
Old 11-22-2018, 07:15 PM
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Originally Posted by Painted Horse View Post
You low elevation flat land guys always get better mileage than us who live at mile high and drive over 10,000 foot mountain pass.
Hey now, there are mountains in NE AL and Talladega National Forest, just not anywhere close to 10,000 feet...LOL.
 


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