Gas Mileage
Freshman User
Joined: May 2004
Posts: 37
Likes: 0
From: edgewood,nm
That idling is whats killing your mileage.A big truck will use over a gallon an hour or about 3/10th mile per gallon idling.thats alot when you only get 6 mpg to start.Dont know what a gasser would do.
Last edited by guy g; Jun 21, 2004 at 08:32 AM.
New User
Joined: Dec 2003
Posts: 9
Likes: 0
I love my 04 F150, but the mileage on the 5.4 sucks even after 5000 miles. I get 10-13. On a recent 1200 mile freeway trip the best I got was 12.5. Hope it gets better with more miles. I'm also looking for performance chips or tuners to help it out.
New User
Joined: May 2004
Posts: 10
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04 Lariat Screw
04 Lariat Screw, 5.4
Got 13 out of the gate until about 500 miles were reached....
and THAT was on the highway.
I'm at 1700 miles now, and as of this tank i'm averaging 18.8
which is almost all highway at 65-75 with a/c on. I NEVER idle...
I'm confident the truck will see 19 highway, which in my mind
is acceptable for the large engine......
Fords weak spot has always been gas mileage....but at least
now they have some horsepower
Got 13 out of the gate until about 500 miles were reached....
and THAT was on the highway.
I'm at 1700 miles now, and as of this tank i'm averaging 18.8
which is almost all highway at 65-75 with a/c on. I NEVER idle...
I'm confident the truck will see 19 highway, which in my mind
is acceptable for the large engine......
Fords weak spot has always been gas mileage....but at least
now they have some horsepower
Senior User
Joined: Jun 2004
Posts: 134
Likes: 0
From: south dakota
04 fx4 supercab 4x4 autoi got 13.8 first tank. not knowing what to expect, i guess not bad and im only on my second tank and only about 500 miles on the truck. am not to concerned at the moment, bone stock and brand new. will be more concerned after i get the mods on that i want. love the truck all the way around, other than having to have the paint on the passenger front door fixed, no complaints.
Senior User
Joined: Apr 2004
Posts: 221
Likes: 0
From: East haven ct
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New User
Joined: Oct 2004
Posts: 19
Likes: 0
05 5.4L 3.55 rearend s/cab 4x4. 16.x to 20.x mpg. I live out in the country, not too much stop and go. Nearest town only has 2 stoplights, if you get stuck at one your having a bad day. Quite a few stop signs outside of town, but nobody ever seems to see them, especially those blue haired ole ladies.
The one thing that I have noticed is that good milage is there to be had. If you pay attention to the way you are driving you can and will get some good milage. On the other hand if you drive them hard they can get pretty thirsty. I installed a scangauge a while ago and have learned or taught myself with the help of the gauge how to stretch out a tank of gas. You can actually see in real time the change in milage, punching it, going up or down hill etc. Pretty neat unit.
The one thing that I have noticed is that good milage is there to be had. If you pay attention to the way you are driving you can and will get some good milage. On the other hand if you drive them hard they can get pretty thirsty. I installed a scangauge a while ago and have learned or taught myself with the help of the gauge how to stretch out a tank of gas. You can actually see in real time the change in milage, punching it, going up or down hill etc. Pretty neat unit.
Last edited by chasman97; Aug 17, 2005 at 09:45 PM.
New User
Joined: May 2005
Posts: 11
Likes: 0
05 5.4 SCAB -3.73 4x4 6.5 ft bed.
I drive 14 miles one way to work, 5 days a week from Aurora, CO to Denver. All stop and go driving, no highways at all. I have 900 miles on my truck. I have gotten 13.7 mpg on my last two tanks.
Been thinking about getting the scangauge, might be fun.
-bob
I drive 14 miles one way to work, 5 days a week from Aurora, CO to Denver. All stop and go driving, no highways at all. I have 900 miles on my truck. I have gotten 13.7 mpg on my last two tanks.
Been thinking about getting the scangauge, might be fun.
-bob
Posting Guru
Joined: Jul 2005
Posts: 1,006
Likes: 0
From: San Jose, CA
I'm getting a tad over 15 in da city in my '05 FX4 screw. Haven't gotten over 17 on the freeway sailing at 70mph.
Anyways, one thing to check is your tire pressure every couple of months especially when the weather changes from hot to cold. You'll find yourself underinflated about 1psi for every 10F drop. ...ever try pushing a truck on underinflated tires? that equals less gas mileage :-(
Anyways, one thing to check is your tire pressure every couple of months especially when the weather changes from hot to cold. You'll find yourself underinflated about 1psi for every 10F drop. ...ever try pushing a truck on underinflated tires? that equals less gas mileage :-(
Junior User
Joined: Oct 2004
Posts: 61
Likes: 0
I have an '05, 1,470 miles on it screw, lariat, I get 12.6-12.8 mpg in city, I rarely do highway driving. It sucks bad. I never go over 2000 rpm so I can save gas...but it doesn't do the trick. I tend to idle sometimes, maybe I should stop. Oh well...we all bought the truck, so we cannot complain, we knew we all had it coming with a heavier truck and very expensive gas nowadays.
Take care,
Dave
Take care,
Dave
Posting Guru
Joined: Mar 2005
Posts: 2,221
Likes: 5
I've heard that too, about the pocket of air. If you have ever rode in the bed, you know that there is infact a pocket of air. If you lost this though, im not so sure more force would be applied to the truck. Would be interesting to test out.