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55 replies to this topic

#21 La1cajun

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Posted 05 May 2011 - 09:14 AM

I'm curious to know why you don't trust the fuel mileage calculations but trust the mileage calculations? Don't they both need to be accurate? It stands to reason that if the speedometer is inaccurate (and they often are), then the odometer would be inaccurate as well.

I did both when i first got the truck and they were virtually right at the same within maybe a couple of tenths..very accurate in my opinion.







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#22 Boosted Pickle

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Posted 26 May 2011 - 10:26 AM

2011 Screw 4X4 3.73 6.5' bed - just filled up, hand calculated 18.3 Imperial mpg (= 15ish US mpg). Avg on '08 5.4 I traded in was always around 14-15 Imp mpg. Maybe hit 17 in summer.
Truck showed avg of 15.1 liter/100 km which is 18.7 mpg. I filled in 73.75 l (19.486 US gallons), trip meter showed I used 72.1 liters, which works out to 18.7 Imp mpg if I use that number and the total kms I drove the tank. This is on 2 highway trips, one about 50 miles (80 km) one way, the other around 60 miles (100km) one way. Rest all in town. So...meh, not bad, not great overall. I'll keep checking (which will be on an almost weekly basis with that tiny little tank) and report as she goes. Maybe it will get better (hahahahahahahahahaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa LMAO ha).
I noticed it would pick up a few mpg just by dropping from 110 kmh to even just 105 kmh-ish. 100 kmh netted a l/100km of around the mid 12's to low 13's - or roughly 22 Imp mpg (18-19 US mpg) (isn't it fun working with 3 sets of numbers? :-) If I can convince myself those extra 90 seconds it takes to get to work are worth it...or anywhere we happen to be going, I can probably actually realize a savings...
Still wonder if I wouldn't have gotten the same or close mpg with the '08 by driving it the same way then, i.e. "easy". (hard to drive a V-8 without it's throttle...sounds so sweet. This thing is like driving grandpas Buick - all quiet...no need to rush, least not until you hit 1750 rpm...;-) )

#23 rcmcmullen

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Posted 26 May 2011 - 11:09 AM

When I refilled my tank I reset my Instant Economy settings. Prior to that I was averaging 16.7 mpg, but since I'm now getting 17.8 (was over 18 until I got a case of the lead foot when trying to pass some idiot who didn't know how to merge onto the freeway). I don't think I'll ever hand calculate my fuel economy. Mostly because I thinks it's too obsessive, but then again I do keep my console display on the Instant/Averge Fuel Economy screen! Hmmm. Anyway, I agree I find myself driving like a grandpa (at least that's my impression) in order to achieve descent numbers on the old Average Economy readout. I predict that too will eventually pass and I'll resume my typcial driving habits and say "screw it" to the whole fuel economy thing. I did the same thing with my last truck until I realized that my driving habits did not have much of an impact on my fuel economy, or at least not enough to justify modifying them! (can you say rationalization!)
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2011 XLT SuperCrew (KC on 5/6/11)
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#24 Boosted Pickle

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Posted 03 June 2011 - 09:59 PM

Tank 2 (that I'm keeping track of at least).
25 gallons U.S. on the nose. Saved $17.20 over filling it up here...meh...I can live with that! 89 Octane, I believe it also contains 10% poopenol.
Distance driven, 560.4 km. Divide by 94.625 liters X 2.82 gives us a grand spankin' total average of 16.7 Imp mpg (13.9 US mpg)...hmmm...still not noticeably better than the '08. Given the power difference though (jeez this thing's fast I tell you!)...I think I'll suck it up and live with it. So much for saving enough on gas to pay the extra $ on the lease payment. Aint gonna happen! Roll Eyes
Truck trip meter figured 16.1l/100km which is 17.5 Imp mpg (14.6 U.S.)...within error (i.e. me over filling).
Total k's so far just over 1800 km.

On my way home I played a little, had a pretty strong tailwind, and as I dropped my speed down to 98 kmh/60 mph, I got as low as 9.7 l/100 km (29 Imp mpg/24.2 U.S. mpg) and it eventually settled in around 10.5l/100 (27 Imp/22 US). As soon as I turned south and had the wind at my side, it dropped to around 16l/100 km (17.5 Imp/14.7 U.S.). Can't imagine how bad it would have been if I headed into the wind. So I guess if I really want to get good mileage I'll have to drive only on windy days...and in the direction the wind is going. Some days I'll never make it to work... Opening the windows (with wind) dropped mpg by a couple...huh...crazy.

#25 Boosted Pickle

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Posted 17 June 2011 - 10:12 AM

1/2 tank or just over (15 gallons/56 liters) of 92 octane burned returned 14.7 US mpg or 17.6 Imp mpg or 17.85 Imp mpg according to he gauge = 15.8l/100km. I guess that's ok since it's mostly in town driving.
This AM on the way to work I was getting 12.2-12.4 l/100 km which is about 23 Imp mpg (19 US mpg) on the highway, dead calm, cruise set at 108 kmh (67 mph).

Passing semi trucks is like taking candy from a baby now...my word I can't get over how damn fast this thing is.

#26 flgator

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Posted 19 June 2011 - 04:17 PM

Yea, the eco is pretty quick, but you hit the nail on the head w/ the comment that the truck feels like a Buick until you pass 1750 rpms. I'm a little disappointed w/ the truck when babying the pedal, but once you pass the "mark" it feels great. I'm also getting the same mpg - around 16.5 - 17 - mix of highway and city. I get better in my wife's 2006 expedition. I can't help but wonder if the 5L would have been better. Buddy of mine has the 5L w/ 3.55 and gets a little better than my ecoboost w/ 3.73 - both are 4x4.

#27 Dean M

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Posted 22 June 2011 - 05:03 PM

Yea, the eco is pretty quick, but you hit the nail on the head w/ the comment that the truck feels like a Buick until you pass 1750 rpms. I'm a little disappointed w/ the truck when babying the pedal, but once you pass the "mark" it feels great. I'm also getting the same mpg - around 16.5 - 17 - mix of highway and city. I get better in my wife's 2006 expedition. I can't help but wonder if the 5L would have been better. Buddy of mine has the 5L w/ 3.55 and gets a little better than my ecoboost w/ 3.73 - both are 4x4.


I think thats the gearing though.

#28 flgator

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Posted 22 June 2011 - 05:17 PM

yea, you're probably right. if i cruise at around 60-65 w/ cruise set i'm getting approx 20mpg, which isn't bad. however, interstate driving at 75 pulls that down a couple of mpgs.

#29 taperk600

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Posted 23 June 2011 - 03:39 AM

<snip>

I can't help but wonder if the 5L would have been better. Buddy of mine has the 5L w/ 3.55 and gets a little better than my ecoboost w/ 3.73 - both are 4x4.


I have 3 friends w/ 2011 Super Crew 4x4 5 liters... all with 3.55 gears. One is a King Ranch 5.5ft box, his brother is a XLT 6.5 ft box, and the 3rd just got his XLT shorty 5 days ago...so he doesn't count. The KR has just over 8K on his now and he says he's averaging 11 around town and on a long trip (...200 mile +/-) with cruise set at 70 he's gotten 15/16. His brother is getting 9/10 in town and hasn't gone on any long trips, but shorter highway trips is getting low 14's and has just under 5K on his now. The guy with the KR had a 2008 KR s-c w/ the 5.4L before this one and is happy as hell since he was "used" to 7-8 around town and "maybe" 10 on the highway with the 5.4........

Also, my insurance guy bought a EB s-crew shorty w/o the tow package, so he has the 3.55 gears. He is about 2-3 mpg better than me on both town and highway averages. And his "sweet spot" seems to be 60-65 where mine seems to be 50-55. Also, another friend just bought the twin to my truck.....exact truck spec for spec.... but he just got it so I haven't seen him to know what he's getting for mileage and to get his thougts. He's coming from a 2008 F250 S-C diesel.....


All-in-all, I think they both are comparable mileage-wise with (what I've seen) the EB being slightly better. But the EB defintely has more power.

Being a previous GM truck guy, I think Ford has a great truck with these 2011s and the number of people I know who have bought one so far just goes to show that others agree too !!!
2011 Super Crew Lariat EcoBoost in Sterling Grey over black leather. Heated & Cooled Buckets.
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Harley Davidson tinted head lights and tail lights. Undercover hard tonneau. Line-X spray-in. More to come.

1999 Chaparral Sunesta 233LE; 5.7 efi Merc/ Bravo 3 outdrive
Scuba yr 'round
Arctic Cats......
2011 600 SnoPro Cross Country
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2010 SnoPro 500

#30 tzolk

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Posted 23 June 2011 - 03:51 AM

As far as the 3.73 goes. My 22 mile hwy only jaunt into work today showed 22.1 mpg on trip a that I set once I hit the hwy. Looking at an earlier post I made, looks like a mild improvement. This was with the cruise at 70mph but I had to slow a couple times due to morning traffic, has to goose it a time or two also. Running 42psi in the tires with a quarter tank of gas right now. We will see what the going home mileage is, the difference.

#31 tzolk

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Posted 23 June 2011 - 03:33 PM

Way home today, 55-60 for 3 miles then 70 mph for the last 19 miles ended with 22.9 when I hit the exit ramp to home.

#32 Boosted Pickle

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Posted 24 June 2011 - 04:00 AM

100 km pulling camper, avg for the tank was 12.4 US mpg (14.86 Imp mpg) or about 18.5l/100 km in other Cdn speak. Meh...and the rides still a little sloppy compared to the '08 pulling the camper (I swear they made the O/R pkg softer than the '08), but when you want to pass someone, def does it a little quicker than the '08.

#33 RPM

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Posted 29 June 2011 - 03:03 PM

First tank averaged 18.5 MPG for combination city and Highway. SC with 3:73 6.5 bed. I think the allot of the differences with these motors is how you finess the right pedal.

#34 pandcacross america

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Posted 01 July 2011 - 10:14 AM

The truck:
‘Zhe Zhe’ is a 2011 F 150, SCab, 6.5 box, 3.73 limited slip rear end, max tow package.
Luverne wheel to wheel running boards.
Diamondback LT tonneau.
Weathertech vent visors.
Just ready for the road with almost 1500 miles on the odometer pre-trip.
3600 miles on Interstates from Florida to Minnesota and back.
The balance of 470 miles in-town in Minneapolis and a bit of local driving in towns along the way.
Most highway driving on Cruise Control. Average CC speed 70 to 75MPH.
Mostly dry conditions; one deluge to drive through.
One extended idling-along in a highway construction zone, 45 minutes to get 5 miles.
All 87 octane Regular except for one tank 89 octane ‘super’ but saw no improvement in gas mileage so saved the difference the rest of the way!
Oil change in MN at appox. 3590 miles. (2090 for the trip.) Changed with full synthetic at Ford dealer .
Outbound MPG reached 18.7 on Day 3 northbound; cooler air seemed to enhance MPG.
Load: 2 pax one dog plus luggage and other rubbish: appox. 825lb for all.
3 grand-kids and luggage for 600 miles; add appox. 250lb for all.
Image shows miles driven, and overall MPG upon return to Florida.
Satisfied and happy with truck!
Cruises the highway like a luxury car; not a guy who goes for the engine roaring thing anyway, I like ‘em quiet like my dad’s Olds Toronado!
Hope this helps!
PS in town here in Miami I consistently get 19.5 to 20.5 MPG surface street commuting.

Attached Files


Edited by pandcacross america, 03 July 2011 - 06:00 AM.


#35 rcmcmullen

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Posted 03 July 2011 - 07:58 PM

Just got back from 160 mile round trip up North with 1 of our Quads in the bed and towing the Rzr on the trailer (plus 5 passengers and gear). Although I didn't get exact numbers on the way up, I did reset the trip meter on the return trip. Prior to getting into town I was getting over 17 MPG! Once I got into the city limits I hit a major wind storm which turned the trailer into a giant wind sail and sent the gas mileage plumiting. I ended up with 15.2 MPG which isn't that bad considering how much I was hauling/towing. I'm very pleased with the way the truck handled, but a little disappointed in the down-shifting while going up some of the hills. I can definitely say that this truck out-performed my old 07 Silverado hands down! I am very happy with this truck!!
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  • 3.73
  • E-LOC RR
  • P275/65R18
Toys
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  • 2008 Polaris Trail Blaser 330
  • 2008 Polaris Trail Boss 330

#36 pandcacross america

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Posted 05 July 2011 - 05:36 AM

Just got back from 160 mile round trip up North with 1 of our Quads in the bed and towing the Rzr on the trailer (plus 5 passengers and gear). Although I didn't get exact numbers on the way up, I did reset the trip meter on the return trip. Prior to getting into town I was getting over 17 MPG! Once I got into the city limits I hit a major wind storm which turned the trailer into a giant wind sail and sent the gas mileage plumiting. I ended up with 15.2 MPG which isn't that bad considering how much I was hauling/towing. I'm very pleased with the way the truck handled, but a little disappointed in the down-shifting while going up some of the hills. I can definitely say that this truck out-performed my old 07 Silverado hands down! I am very happy with this truck!!


Hey, RC,

Were you able to try the M setting on the transmission when down-shifting?
I was able to use it on steep downhill grades with some success after getting used to using it.
Curious re towing and uphill grades, if you were able to employ the setting.
Thanks,

PK

#37 rcmcmullen

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Posted 05 July 2011 - 06:35 AM

Hey, RC,

Were you able to try the M setting on the transmission when down-shifting?
I was able to use it on steep downhill grades with some success after getting used to using it.
Curious re towing and uphill grades, if you were able to employ the setting.
Thanks,

PK

Hey PK,

No, I just left it in D the entire trip with Tow/Haul mode engaged. I did notice the transmission automatically down-shifting while going down steep descents (2-3 degree downgrade according to my truck, 6% according to the road sign). I didn't think of trying the M setting. I'll have to give it a try on my next trip.

On a different note, I noticed something very strange on my dash. The gear indicator went blank the entire trip. Not sure what caused it, but it was working fine this AM.

RC
Toy Hauler
2011 XLT SuperCrew (KC on 5/6/11)
  • Race Red/Ingot Silver Two-Tone
  • 6.5 bed
  • EcoBoost
  • Max Trailer Tow
  • Off-Road
  • 3.73
  • E-LOC RR
  • P275/65R18
Toys
  • 2010 Polaris Rzr 4
  • 2008 Polaris Trail Blaser 330
  • 2008 Polaris Trail Boss 330

#38 Lewisa97

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Posted 22 July 2011 - 09:28 PM

Hello, I've got the 3.15 gearing in back and I seem to be getting really crappy mileage around town (13.8 mpg hand calculated) even when I drive like a grandpa. (Never mind that I am one.) Highway mileage is great, I can usually get 23 mpg if I keep it under 70.
I'm just wondering how much effect the rear gearing has on MPG and how much I could improve it for city driving if I went to a lower ratio. It would be an expensive experiment to change gears just to see what it does to the city MPG.
Can anyone chime in with their ave. city MPG and rear axle ratio?

#39 EZ Chair

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Posted 28 July 2011 - 05:37 PM

First 600 miles, 18.5 mpg, around town, loving it!

#40 jrrepair1

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Posted 29 July 2011 - 07:59 PM

I have had my truck since 7-1-11, and have been averaging 15.5 mpg around town (Chicago suburbs) with some tanks being as high as 17.6 mpg. I ran 87 octane for the first 600 miles or so, and since have been running 91 octane. Did not notice a mileage increase with the higher octane, but it seems a little more responsive at the lower end of the rpm range when running premium. I have filled up at the same pump since new and have found the trip gallons used are always .1 gallon less or more than what I put in the tank by letting it fill until it clicks off. Example...truck says it used 16 gallons, and it took 16.1 at the pump. I made a run up to upstate NY (near Watertown) from Chicago last week, around 810 miles from my place to my parents house. Averaged 19.9 mpg both hand calculated, and dash reading was 19.8. This was running 72 mph according to the gps. Had around 600 pounds of payload in the bed and the wife and baby in the cab. One tank was close to 21.5 running through the end of Indiana to the other side of Cleveland. (all I-90). From upstate NY made a 310 mile trip to Boston running down route 12 to Utica (pretty hilly in some spots) and then I-90 the rest of the way. That trip down was 20.5 average (gauge and hand calculated) and there are some decent grades on that trip. On the way back from Boston to upstate NY today ended up at 20.3 mpg. Since I didn't have the baby with me (Grandparents were having fun babysitting!) I hammered it on 6 or 7 hills from 70 to 100 mph that were all reading 4-5 grade on the gauge, and still averaged 20.3. Needless to say I am happy with the mileage this thing is getting, and it is getting better with the more miles that I am putting on it. Now at 3200 miles and the engine is really starting to wake up. Hope some of you find this info interesting.

Truck info: 2011 Ford F-150 XLT Supercrew 4 wheel drive with 5.5 foot bed
3.5L Ecoboost with 3.73 limited slip and max tow package
18 inch wheels 275-65/18 tires

JR




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