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EcoBoost (3.5L, 2.0L) 3.5L Twin Turbo EcoBoost V6 and 2.0L I4 EcoBoost Engines

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Old 05-21-2012, 08:27 PM
Jayybird Jayybird is offline
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FX4 MPG!

Hello,
I have a 2012 fx4 crew cab ecoboost running 33 trail grapplers with leveling kit. I average 13.7-14.2 mpg. Think this is horrible. I have a f250 6.7 powerstroke on 37s with 6" lift that gets 14 mpg. I k is a couple folks with the 5.4 that get 15-6ish with the same set up. Other than fuel economy, the ecoboost is great!

What mpg are y'all getting? I am very disappointed. I am not seeing the improvement here...
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Old 05-21-2012, 08:32 PM
Jayybird Jayybird is offline
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3.73 gears
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Old 05-22-2012, 05:31 AM
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Stock wheels and tires with 3.31 axles and I'm getting over 19 mixed.
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Old 05-22-2012, 06:40 AM
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EcoboostKev EcoboostKev is offline
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My FX4 with 3.73 i average 14.5-15mpg around town, 18mpg on highway and 10.6 towing 7400lbs..
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Old 05-23-2012, 07:16 AM
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Overall mixed average is just shy of 17 mpg and the past three tanks have been around 18 mpg. Hwy mpg usually settles in at 18-20 mpg depending on wind and speed. This is for a 2011 F150 Crew Cab Short Box 4x4 w/3.73's.
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Old 05-23-2012, 08:04 AM
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TOOLOUD1 TOOLOUD1 is offline
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I have 2011 EB Fx4 supercrew and I get 18-20 with mixed driving. I have 285/65/18's nitto terra grapplers with NO leveling kit.
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Old 06-01-2012, 07:39 PM
Kbob44 Kbob44 is offline
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2012 FX4 3.73s screw short box. Mixed driving I get just over 18 and 20 highway. Pulling my 8,000 lb TT I get 8 at 70 mph and 10 at 60 mph.
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Old 06-02-2012, 10:28 AM
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Quote:
Originally Posted by TOOLOUD1 View Post
I have 2011 EB Fx4 supercrew and I get 18-20 with mixed driving. I have 285/65/18's nitto terra grapplers with NO leveling kit.
How loud are those tires when going down the road? I would hate to have tires that make all sorts of noise but want the added traction offroad. I wonder how well those tires would be on a slick boat ramp?



To the OP: 33's are pretty huge...also in your area are you going up and down lots of hills? milage is very subjective and what others get will not relate to your driving habits or surrounding area.
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Old 06-02-2012, 10:37 AM
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These tires are very quiet IMO and will really surprise you on how well they perform. As for the hills There aren't many hills in north Louisiana. I think I lost maybe 1 mpg when I put these 285/65/18's on my EB.
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Old 09-16-2012, 02:26 PM
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I have 1,750 miles on our 2012 FX4, Supercab, 5.5 bed, 3.73 rear axle with 20 inch tires/rims. Our gas mileage averages 15.5 to 17.5 mpg. I run 87 octain.

Although I only pull our boat (Tige 24V - 4,300 lbs) a very short distance - storage to boat ramp, the EcoBoost V6 performs very well. The mileage is about 12 mpg when towing.
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Old 09-18-2012, 07:32 PM
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I just averaged 21.5 mpg driving from Lake Texoma to Prosper (North Dallas) in my 2012 FX4x4, EcoBoost. Speed range was 45 to 68, due to a few small town speed zones.

I drove with the tail gate down, which does make a difference. This is why I'm going to get a truck bed cover. When the tail gate is in the up/closed position, logic tells me it acts like a parachute.

Paul
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Old 09-18-2012, 08:39 PM
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There has been a thread on that same topic - the op stated that he didn't see any difference with a bed cover vs open bed.
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Old 09-18-2012, 09:30 PM
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2012 CC FX4 3.73 17mpg with about 70% hwy.
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Old 10-18-2012, 04:46 AM
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My 2011 FX4 w 3.73/ full fiberglass cap will average 17mpg,
winter 14-15 mpg
towing-11-14mpg

I have 11k miles so it should be broke in by now

by the way "Truck is Awesome"
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Old 10-21-2012, 07:07 PM
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I now have 4,750 miles on our 2012 FX4, Supercab, 5.5 bed, 3.73 rear axle with 20 inch tires/rims. Our gas mileage averages 17 to 21 mpg, with an overall 18 mpg. I run 87 octain.
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Old 10-21-2012, 07:07 PM
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