2004-08 4x4 5.4L F150 owners step in please

[2814v]

2814V I had Troyers custom dyno tune my F150 with the X3 and 3.5" AF1 unit and with that and now the added Roush exhaust (didn't re-tune) I am getting 2-4 more MPG's than you what tune are you running on?

Sorry man, just saw this. I am in california, thats why I got the airaid CAI. It has a C.A.R.B. sticker so it is legal in Cali. I have the 87 and 91 performance tunes also 87 tow. There are a few reasons why You get better milage.

1. I live in commie Cali, so can only get 91.
2. I live in commie Cali, and our gas can have up to 10% ethanol in it. Troyer has to adjust tune for that.
3. I live in commie Cali and have a heavy right foot.
4. I live in commie Cali and my truck has always been thirsty, just like some cars are horse power freaks from the factory, some can be gas hogs too. I got one.

But not complaining it is a great truck and oh so pretty. But I am complaining about living in commie Cali, it is a beautiful state with lots to do but the politics suck.

 

[05 Roush]

High elevation (7000'DA) and Roushcharged dropped 2wd config:

15.5 MPG City
17.0 MPG Hwy @ 80 MPH
20.0 MPG Hwy @ 70 MPH
21.9 MPG Hwy @ 65 MPH

 

[JWC]

I am now up to 17.3 -17.4 in town MPG but I switched from my 87 oct two haul mode to the 87 oct performance mode.

 

[SteveO]

I have an '05 supercab with 6" procomp lift with 20" rims and 35s...have JLT intake and flowmaster catback.... i like hearing the exhaust too so i tend to put the foot down more often...still i average over 11 city with 87...tried 93 and it jumped to 12-13mpg...highway with CC on 75 i saw just over 17 mpg and this was also with having to drop to a lower gear for hills and having an extra 1300 lbs being hauled... normally on the highway i will see over 18mpg without any extra weight going 75...

 

[Alloy Snake]

08 F150 Crew 4x4 with Troyer stage 1-MBRP exhaust getting 11 in town,About the same as all the 4x4 trucks I have had.

 

[05 Roush]

08 F150 Crew 4x4 with Troyer stage 1-MBRP exhaust getting 11 in town,About the same as all the 4x4 trucks I have had.

You must have 35's and a 1' lift. :lol1:

 

[Mystic_Cobra]

I've got an 05 FX4 SuperCrew loaded. Every option except the rear video system. I have a few aftermarket options including the Edge which is run in economy unless I'm towing, then I put it in towing mode. I never do any custom programming. I have a Pace Edwards retractable bed cover that I love. It is kinda heavy but it keeps my stuff covered and out of the weather. It is supposed to help with aero.
I have 55K miles on it. My truck weighs ~5400 lbs without driver. I usually keep 46-50 psi in the tires.

50% of those miles are towing my racecar. 20% are highway no load. 30% are local/around town/sitting at lights.
My average over 55K miles is 13.5. I get 12.5 towing 7000 lbs at 75 mph. If my wife drives, she gets 1 mpg better-she drives a little slower and won't push it to 4500 rpm up mountains like I do. On most work days, I don't see speeds over 45 and average is probably 25. On these days, I get 13. When I was driving 40 miles each way to work, I was getting 17.5-18 if I kept it at 60-65.

 

[VEGASbabyVEGAS]

13-16 city (depending on a/c use and idle times)
17-23 highway (23 across the Mojave 187 mi to Vegas...checked and double checked) 07 F150 5.4L Lariat (super chips tuner on 91 octane tune, Gibson Exhaust, K&N) i've matches this 3 times... 3 out of 5... the other two were 18 and 20... 18=headwinds and stock rims, 20= 22" Harley rims and more passing.

 

[Nicky Pass]

I've had my 2006 FX4 supercab for about 2 months now....the best I've gotten (the truck is 100% stock) is about 13-14 city driving. I rarely drive on the expressway...but I'm hoping an intake, exhaust and bed cover will increase mpg's a little.

 

[matab14]

I've had my 2006 FX4 supercab for about 2 months now....the best I've gotten (the truck is 100% stock) is about 13-14 city driving. I rarely drive on the expressway...but I'm hoping an intake, exhaust and bed cover will increase mpg's a little.

I added the exhaust on mine and it was good for about 1mpg.....could tell a HUGE diff in power though more than anything....I dont think Bed Cover will do ya much of anything esp city drving...13-14 in town is good I do about 10 in town...haha :rockon:

 

[05 Roush]

I've had my 2006 FX4 supercab for about 2 months now....the best I've gotten (the truck is 100% stock) is about 13-14 city driving. I rarely drive on the expressway...but I'm hoping an intake, exhaust and bed cover will increase mpg's a little.

If you are lifted, have 4x4, or jumbo tires, an intake, exhaust, and bed cover will do nothing to help your mileage.