Eco boost mpg

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mbtech2003

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What’s everyone getting for mileage on their v-6 expos. My wife has a 2010 5.4 and is getting 14.5 average. Just wondering if it’s worth getting the v6 or not. Trucks paid off so if I upgrade I would have a payment. Thanks!!!
 

jeff kushner

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I left one of my digital odometers alone since I bought the truck new..................140,000 miles 18.5mpg AVERAGE since new.

Tankful's today generally show 19-20mpg....but my average is 18.5
 

Timo2824

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My wife is heavy footed and her mixed average is 17mpg on our 2017 HD tow. It's actually gotten better, when we bought it last August it only had 15,000 miles and we were averaging 15mpg mixed until the 26,000 mile mark.
 

catmandu

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17.5 until I calibrated the display. Now a more accurate 15-16 depending on how much highway time we spend. But we live on top of a mountain and do a lot of engine braking.
 

tskrypek

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2017 Expedition Limited EL with HD towing package. Getting 17.5mpg local driving and 22mpg highway driving for gas mileage. Last December drove from Massachusetts to Utah and back did 17.5mpg(pushing a headwind going) and 18.5mpg(crosswind returning) that included driving on snow covered roads for 300 miles.

Last September did the same drive pulling a travel trailer(21ft 4500lbs) and averaged 9.8mpg we stopped for gas every 3 to 3.5hrs and averaged 23 gallons per fillup (33.5 gal tank).
 

Timo2824

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Maybe I need to make a detailed miles/gallon check. Seems you guys are driving on a different planet where all the roads are downhill and down wind. I'm thinking I maybe get 14mpg at best.

-- Chuck
I get 13mpg in my Transit 250 van with the 3.5 Ecoboost and a loaded ladder rack. Same vans without the rack get 17.5mpg. I'm guessing that's what most people will get with these engines.
 

jeff kushner

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Maybe I need to make a detailed miles/gallon check. Seems you guys are driving on a different planet where all the roads are downhill and down wind. I'm thinking I maybe get 14mpg at best.

-- Chuck
This was so funny I had to log on to respond.....Chucks been around a long time.....

Just back your foot off the gas, ALL THE TIME brother.....LOL......

In both of my old expys that had the 5.4, they got 13.5mpg overall. The 3.5 will *hit & git it if I ask it to, I just don't......like hardly ever. It might have, MIGHT have 10 WFO starts in 5 years. Got too many fun things to thrash.....no point in ruining a good truck.

jeff
 

chuck s

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Just went out and checked the computer -- not as bad as I thought. :)

16.4 mpg over the last 9300 miles and 281 hours. That's probably 18 months of driving since the truck just rolled over 30,000 miles and is almost 5 years old.

Some 5th grade math shows an average speed for that same period to be a mere 33 mph but I don't recall ever driving that slow.

-- Chuck
 

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Aspen03

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14.5 average is pretty good for a 5.4. Without actively trying to get the best possible. If you're going to buy a truck to save money via gas mileage you're going to lose big time. If you need a new one for whatever reason that's another story. We have a family member with a 2016 and she averages in the 16s but there is a lot of idle time w her living in FL...uses remote start to cool it down most days.
 

hapEcat

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2017 Expedition Limited EL with HD towing package. Getting 17.5mpg local driving and 22mpg highway driving ...
Seems we have the same Expy, but our best Interstate hwy (~80mph) is 16.6mpg, around town is 9-10mpg, pulling a heavy loaded tandem axle utility trailer, 350 Interstate miles @ ~80mph yielded 10.1mpg. I'm also heavy footed!
 

Honu

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I've got a 2016 Limited. I'm averaging 21.4 over the 34000 miles I've put on her. It's gotten to where I'll get 22.1-22.4 on a tank, but I think that had to do with winter blends.
Caveat, mine is a 2wd and I do the majority of my driving with my thumbs.
 

plumcolr

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'17, 18-19 winter, 20-21 summer, the hard way miles driven / gallons pumped. Like Jeff above, easy driver, buried the throttle maybe 4 times in 50k miles. At steady 70 will show 22+ and be an honest 22. Mileage indicated averages about 1 mpg higher than mileage actual
 

GlennSullivan

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2017 standard length 4x4, HD Tow, 331 open differential.

Around town, which is the majority of our day to day driving we get 15 / 16 on 87 fuel.

Highway (75 / 80) no trailer on 87 fuel 17 / 18 on 93 fuel 20 / 21.

Highway with trailer (70 / 75) (6500lb) 12.5 on 93 (dont tow on 87).
 

Timo2824

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2017 standard length 4x4, HD Tow, 331 open differential.

Around town, which is the majority of our day to day driving we get 15 / 16 on 87 fuel.

Highway (75 / 80) no trailer on 87 fuel 17 / 18 on 93 fuel 20 / 21.

Highway with trailer (70 / 75) (6500lb) 12.5 on 93 (dont tow on 87).
Interesting, on my 2017 HD tow I don't see a noticable difference from 87 to 91 towing or empty. Wondering if altitude makes a difference, what elevation are you at?
 

GlennSullivan

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Various elevations, When I quoted the highway mileage above without trailer, it was based on a round trip from NY to Chicago. Rt 80 most of the way
 

Paddler

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Recent round trip from SLC to northern California, 1422 miles, CC at 67MPH, 24.3MPG, 2018 Max XLT. Average City/Hwy is ~20MPG. Way better than my Gen 3, about 33%.
 

rslynes

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'17 King Ranch 'Shorty'
~120K - Mostly non-towing
3.5L V6 - 3.73 L/S Rear End - 6R80 Transmission
22" Michelin Defender LTX
@~65mph/1,700 RPM - 18 - 20 (w/o strong headwind)
@~80mph/2,200 RPM - 16 - 17 (w/o strong headwind)
Town driving - 16 - 17
 
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