4.6 vs 5.4 milage
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Joined: Jan 2005
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From: Montgomery, Alabama!
Originally Posted by -TXF150-
Why is that, are you afraid yor engine will blow up?? 
No, because I have my permit and my mom will bitch at me, trust me when i'm on my own I'll be WOT all the time.
Member
Joined: Mar 2006
Posts: 16
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From: Coldwater
ok, I have a 4.6L and it is fine for what i use it for. The most that i ever tow with it is a small fishing boat. it is not like I would ever consider latching on to a large load of hay or something with it. Thats what the F250 is for. My F150 gets about 19 to 20 on the hwy and 16 or so on the back roads. It all depends on how you drive. if you rare and tare with it the less you will get. Just make sure to get the engine that fits your needs. Take everything you read in here with a grain of salt!
Senior Member
Joined: Mar 2005
Posts: 274
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From: Florida
Originally Posted by kayaker49036
... My F150 gets about 19 to 20 on the hwy and 16 or so on the back roads. It all depends on how you drive. if you rare and tare with it the less you will get. Just make sure to get the engine that fits your needs. Take everything you read in here with a grain of salt!
Senior Member
Joined: Mar 2006
Posts: 2,196
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From: Trempealeau, WI
My 04 F150 FX4 SC, 3.73LS, IMCO perfomance muffler, Edge Evolution, otherwise stock (until thursday/friday once rims, tires, and lift get here
)
All of these are a mix of city/highway driving
Bone stock: 15 mpg
Muffler only: 15 mpg
Muffler and Edge on setting #2: 15 mpg
Muffler and Edge on setting #3: 16.5mpg
) All of these are a mix of city/highway driving
Bone stock: 15 mpg
Muffler only: 15 mpg
Muffler and Edge on setting #2: 15 mpg
Muffler and Edge on setting #3: 16.5mpg
Junior Member
Joined: Mar 2006
Posts: 2
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Sence 1987 I have owned the 87,89,90,92,95,2 each 97's, 99,00,01 and now a 05 sc 8' bed 8200GVW. Before I bought all these new off the lot vehicles I have owned more than a few ford F-100, 150's, and F-250's.
I have had the 300/6, 4.2/6, 302, 351, 4.6, and of course now the 5.4. I believe I can give a trew answer to this question.
To let you know how I drive, currently I bought my 05 model on April 28, 05(currently 38000 miles). I waited probably one month before I drove it regularly. I own a Electrical contracting company that services offshore oil rigs and just plain ole put up tons of milage.
I drive 80% of the time highway and only cruise control. No I don't drive the speed limit, but I only push it by a couple miles an hour. Grant it I do carry plenty of tools and supplies with me but did in all these trucks, so everything is very, very close to the same.
Truth is..............15mpg boys. I have driven all of them on well over 1000 mile runs a/c on, a/c off and in many different ways. But among all, I drove them al the same way.
I kept a sc 6' bed 3.55 gears for eight years, by far the best of all these trucks. I put a K&N replacement filter in it, power tower, and replaced the cat converter to some type of better one (not sure the name , been many years but I will look it up) on this truck....21mpg no matter what I do.
This is the truth 300, 4.2,4,6 and 5.4. I did find the 3.55 gears were the best, also 3.73 was the worst. Infact I had 3.73 gears with a 4.6 and if I took it out of overdrive and put it in drive on the highway I actually got better gas milage. 3.55 gears went into yhat truck and yes 2.2 mpg better.
I only read the first two post and just couldn't stand what I was hearing.
Sorry if I flamed anyone, but this is really a life time of running fords that gave me these answers.
How I got my mpg, fill the tank and devide it by the milage.
I have had the 300/6, 4.2/6, 302, 351, 4.6, and of course now the 5.4. I believe I can give a trew answer to this question.
To let you know how I drive, currently I bought my 05 model on April 28, 05(currently 38000 miles). I waited probably one month before I drove it regularly. I own a Electrical contracting company that services offshore oil rigs and just plain ole put up tons of milage.
I drive 80% of the time highway and only cruise control. No I don't drive the speed limit, but I only push it by a couple miles an hour. Grant it I do carry plenty of tools and supplies with me but did in all these trucks, so everything is very, very close to the same.
Truth is..............15mpg boys. I have driven all of them on well over 1000 mile runs a/c on, a/c off and in many different ways. But among all, I drove them al the same way.
I kept a sc 6' bed 3.55 gears for eight years, by far the best of all these trucks. I put a K&N replacement filter in it, power tower, and replaced the cat converter to some type of better one (not sure the name , been many years but I will look it up) on this truck....21mpg no matter what I do.
This is the truth 300, 4.2,4,6 and 5.4. I did find the 3.55 gears were the best, also 3.73 was the worst. Infact I had 3.73 gears with a 4.6 and if I took it out of overdrive and put it in drive on the highway I actually got better gas milage. 3.55 gears went into yhat truck and yes 2.2 mpg better.
I only read the first two post and just couldn't stand what I was hearing.
Sorry if I flamed anyone, but this is really a life time of running fords that gave me these answers.
How I got my mpg, fill the tank and devide it by the milage.
Member
Joined: Jun 2005
Posts: 91
Likes: 0
From: Somerset, Kentucky
Originally Posted by gaff
Sence 1987 I have owned the 87,89,90,92,95,2 each 97's, 99,00,01 and now a 05 sc 8' bed 8200GVW. Before I bought all these new off the lot vehicles I have owned more than a few ford F-100, 150's, and F-250's.
I have had the 300/6, 4.2/6, 302, 351, 4.6, and of course now the 5.4. I believe I can give a trew answer to this question.
To let you know how I drive, currently I bought my 05 model on April 28, 05(currently 38000 miles). I waited probably one month before I drove it regularly. I own a Electrical contracting company that services offshore oil rigs and just plain ole put up tons of milage.
I drive 80% of the time highway and only cruise control. No I don't drive the speed limit, but I only push it by a couple miles an hour. Grant it I do carry plenty of tools and supplies with me but did in all these trucks, so everything is very, very close to the same.
Truth is..............15mpg boys. I have driven all of them on well over 1000 mile runs a/c on, a/c off and in many different ways. But among all, I drove them al the same way.
I kept a sc 6' bed 3.55 gears for eight years, by far the best of all these trucks. I put a K&N replacement filter in it, power tower, and replaced the cat converter to some type of better one (not sure the name , been many years but I will look it up) on this truck....21mpg no matter what I do.
This is the truth 300, 4.2,4,6 and 5.4. I did find the 3.55 gears were the best, also 3.73 was the worst. Infact I had 3.73 gears with a 4.6 and if I took it out of overdrive and put it in drive on the highway I actually got better gas milage. 3.55 gears went into yhat truck and yes 2.2 mpg better.
I only read the first two post and just couldn't stand what I was hearing.
Sorry if I flamed anyone, but this is really a life time of running fords that gave me these answers.
How I got my mpg, fill the tank and devide it by the milage.
I have had the 300/6, 4.2/6, 302, 351, 4.6, and of course now the 5.4. I believe I can give a trew answer to this question.
To let you know how I drive, currently I bought my 05 model on April 28, 05(currently 38000 miles). I waited probably one month before I drove it regularly. I own a Electrical contracting company that services offshore oil rigs and just plain ole put up tons of milage.
I drive 80% of the time highway and only cruise control. No I don't drive the speed limit, but I only push it by a couple miles an hour. Grant it I do carry plenty of tools and supplies with me but did in all these trucks, so everything is very, very close to the same.
Truth is..............15mpg boys. I have driven all of them on well over 1000 mile runs a/c on, a/c off and in many different ways. But among all, I drove them al the same way.
I kept a sc 6' bed 3.55 gears for eight years, by far the best of all these trucks. I put a K&N replacement filter in it, power tower, and replaced the cat converter to some type of better one (not sure the name , been many years but I will look it up) on this truck....21mpg no matter what I do.
This is the truth 300, 4.2,4,6 and 5.4. I did find the 3.55 gears were the best, also 3.73 was the worst. Infact I had 3.73 gears with a 4.6 and if I took it out of overdrive and put it in drive on the highway I actually got better gas milage. 3.55 gears went into yhat truck and yes 2.2 mpg better.
I only read the first two post and just couldn't stand what I was hearing.
Sorry if I flamed anyone, but this is really a life time of running fords that gave me these answers.
How I got my mpg, fill the tank and devide it by the milage.
Senior Member
Joined: Aug 2005
Posts: 881
Likes: 0
My '05Screw Lariat 5.4 with 3.55 gears gets between 17 to 20 on the highway, depending on road conditions and direction of wind (serious). In a calm wind, I usually get 18-19mpg measured by the onboard computer and about 19-20 by hand method.
When it comes to a truck, the aerodynamic drag is so large than most gasoline engines similar in configuration will get about the same fuel economy.
When it comes to a truck, the aerodynamic drag is so large than most gasoline engines similar in configuration will get about the same fuel economy.
Senior Member
Joined: Nov 2005
Posts: 1,194
Likes: 5
From: Florida
Originally Posted by JJG052590
No, because I have my permit and my mom will bitch at me, trust me when i'm on my own I'll be WOT all the time.
Senior Member
Joined: Dec 2005
Posts: 4,176
Likes: 0
From: Braselton, Georgia
i dont know about yall and complaining.......i have a 05 5.4 4x4 screw lariat... wow alot to say...anyway.....when driving at 58-65 MPH i get anywhere from 20-23 MPG. when im drivingin highway at 70-80 i get anywhere from 14-17 MPG. KEEP IN MIND ALSO MY TRUCK IS COMPLETLY STOCK 
