Ok...i'm considering buying a 2007 f150 and I was wondering what gas mileage was like on a 4.6L v8 vs. 5.4L v8.

I was considering getting an 07 frontier, but even though it's a v6 it got 16mpg in the city and 21mpg on the highway. Chevy's website says its 5.3L v8 gets 15/19, 4.8L v8 gets 16/21, and Ford's says it gets 14/18...

i may go with chevy because of gas mileage...

 

The Ford 5.4 4x4 (i have had 2 crew cabs in this configuration) get between a worst of 12 mpg when I was towing a 8000 pound trailer at 70 on the hwy to a high of about 18 on the hwy going 70 with no load. On each truck I averaged 15-16 in mexed driving. Chevy has the same mpg.

The ford 4/6 may get about 1 mpg better at a significant loss of low end power. But if you don't need the extra power, then its a non-issue.

 

2005 F150 Supercab XLT 4x2 5.4L Auto 3.73 Gears.

Not including towing... Worse Tank 11.1 MPG.... Best Tank 20.3 MPG
Calculated by Miles/Gallon... Not a MPG Readout!

My guess is the 4.6L would get 12.0 - 21.5 mpg in the same vehicle.

In my experience the most fuel efficient V-8 is the Toyota 4.7L followed by the Chevy 4800.
The best combination of power/mileage is a Chevy Regular Cab 4x2 5300 with 3.42 Gears.

 

I'm probably going to go with the 2007 silverado classic crew cab 4x4 with the 5.3L v8...which gets better mpg than the f150's 4.6L v8....my friend with 2006 crew cab z71 gets 17-18 mpg in the city

 

wow.

Talk about an apples and oranges comparison.

You do realize comparing EPA ratings to real world is COMPLETELY unrealistic, right?

Also, when one guy claims to be getting X MPG you may want to check with more sources. People like to embellish a little bit when talking about stuff they own.

And my final point, and the most important... if you are concerned about 1MPG difference, DO NOT buy ANY full size truck. Full size trucks, no matter WHAT one you get will get BAD MPG. Period. End of discussion.

So if you want a gas friendly truck, go get a 4 banger.

 

Buying whatever you buy based on 1-2-3 mpg difference in mileage just doesn't make sense to me.

Buy what you LIKE to drive, and drive what you WANT to drive for such a little difference in mpg. Won't the overall difference in really enjoying what you have and drive make up for that???

You can increase the mpg for whatever you are driving that much just by having a lighter right foot...

 

Ya know... Yugo's get good mileage too

 

Yeah Z, you can tow that ski boat with a Yugo.

At least you will have someplace to put all the parts that fall off the tow vehicle...

Whenever you pull into a highway rest stop, you can stand there and watch it rust out before your very eyes.

Heck, I would rather drive a F-150 with a 4.2 than to drive a Yugo!

 

I'll stick with the 5.4L - There's after market mods that will get me milage and performance at the same time - a tune, e-fans, under-drive pulleys, port & polish the TB, 4.10's all around and good maintenance. Free up some power and let it breath and be good to it...

206,000 miles without any major mods and I managed 20mpg at times on the e-way(on the pike thru flat, Ohio) - Hell, I had a mini-van sometime back that wouldn't get that..

It's more of what you trust in a truck, I'll take the 5.4L..MINE, it's just broke in..

 

My dad's 07 Harley Screw gets about 16 mpg average from what he says, obviously better on Highways. Keep in mind that is the AWD truck, not 2wd, so that can't help much. If you use a truck as a regular car, either 4.6 or 5.4 won't make a difference in mileage really. The 4.6 may get a hair better if the engine is not strained too bad. For mileage, the chev's aren't bad at all, probably the leader, but not by much. Keep it American son, if not the Ford, get the chev or Dodge, not Nissan. You will love the Ford though, however you option it.

 

That's one of the funniest damn things I've read in awhile.

 

Well, I filled up this evening, and the previous tank of gas was bought Dec. 23rd. I did about 180mi of highway driving, and another 90mi city only, for a total of 270mi driven on this tank. I averaged just over 12mpg, and I have a 4x4, Hypertech 87 octane tune (useless, except it firmed up my tranny shifts), k&n filter (also a waste of money in my opinion), and a 4.6 liter engine. It's a truck, what do you expect?

On a side note, assume I had a more efficient engine, say the Toyota 4.7, or the Chevy 4.8. What if I got, say, 15mpg? Assuming 12000mi driven a year, with gas costing an average of $2.70/gallon for the year, I would spend an additional $540 to drive my 12mpg F-150 rather than a 15mpg something else. That works out to $10.38/week for the year...I'm willing to pay that to drive what I like.

Go one step further, what if you could get 20mpg? I don't know of a current fullsize, 8-cyl, 4x4, truck on the market that can actually deliver that kind of fuel economy, but I'm just making an example here. If said truck existed, I would be paying an additional $1080/year to drive my F-150, or $20.77/week. See my point? Rather you get 12mpg, or 10mpg, or 20mpg...the actual impact on your fuel cost is not as much as people assume it is. Granted, apply these numbers over 5 years and 100,000miles and the savings does add up, but again, how much are you willing to spend to drive what you want?

Don't even get me started on people who will drive 10miles across town to save $0.02 on a gallon of gasoline...

Later,
Mike

 

...or the guy who will stop and get $5.00 worth, 2 - 3 times in one day. IF you are gonna stop for gas anyway why not fill it all the way up?

If you are gonna only use 1/4 of the tank capacity over and over, try to use the area from 1/2 to 3/4 or from 3/4 to 4/4 (full). Make sure you keep it somewhere betwen 1/4 and 1/3 full all the time. Your motor will like you for it, as you are not as likely to be sucking all the crap that accumulates in your gas tank over the years through the rest of your fuel delivery system.

 

no matter what the window sticker says. its not true, you shouldnt just listen to the sticker, it depends on how you drive, the fords are the best as i was like you and looked at them all. I recomend the ford becasue of the way that it drives. a much better ride.

 

So you come into a FORD TRUCK forum and say you're going to go buy a GM pickup. Sounds like you've already made up your mind and most likely, being a chevy guy yourself, none of us here are going to sway you to buy the best pickup on the planet.

That said, I would have a 5.4 over a 5.3 or 4.8 GM any day of the week. The 5.4, if maintained, will last forever, and has great torque down low compared to the GM engine's higher strung power characteristics. The GM CLAIMS that they get better mileage. Well those mileage claims are EPA estimates. The same EPA estimates for my Lightning are 12 city 14 highway. I get 21 highway and around 16 city. Dad's '00 F150 gets 22 hwy 18 city...5.4/auto/extended cab 4x2. Most, if not all, of the Ford owners that I know of say that they get substantially better mileage than what the window sticker says. Most of the follks that I know with GM trucks say that they get about the same or worse than what the sticker says. And forget about the Dodge...they're not even in the ballpark. 12 mpg out of a Hemi truck and I cannot for the life of me see where the 340 HP is at...I doubt its more than 300 probably closer to 270. Lots of noise and it just doesn't go anywhere.

Anyway, back to the 5.4 Ford. The torque on these things is almost like a diesel. Most of the torque is available below 2200 RPM, right where you need it to get a heavy truck/trailer moving. The top end power isn't all that amazing, but they get the job done fairly well. The GM 5.3 is more powerful on the top end (stock vs. stock) but has NO bottom end to speak of. It has to rev; and the 4.8 is even worse. The 4.6 Ford has decent bottom end and decent top end power and is a good compromise between the V6 and the 5.4. It's MUCH better than the V6 I might add. I wouldn't even consider a 4.2 V6 in a full size pickup (had one in '97...won't have another one) The 4.6 WILL get better mileage than the 5.4, but not THAT much better. 1-2 mpg better, at best. Normally they're about the same. Usually when the question comes up, I ask this: Are you going to pull a trailer? If yes...get the 5.4, you'll absolutely love it. If No, the 4.6 will usually do just fine.

Back to MPG. If you learn how to drive the 5.4 it will out MPG a GM 5.3 hands down. Just have to teach yourself a little patience and keep the RPM down. If you drive 100 miles at 65 mph rather than 85, you will get there 10 minutes later but save yourself $25 in fuel. Just leave 10 min. earlier. Simple. Now, if everyone would learn to slow down a little...we'd save ourselves a lot of fuel and money.