4.7L gas mileage

[Ironman02]

I was traveling 180 miles round trip for work a day (all highway) and would go through a half tank per day. Going to work I’d be going down in elevation, and vice versa on the way home. I tried to keep the tank full hoping it would do a little better on mpg, but it was still $50 a day no matter what I did. Now going south on I-95 on cruse control I’d do about 380 to 400+ a tank, but not much more, and the driving conditions had to be right.

[StevenT]

2005 4.7 limited crew cab, 14 on low side 17 down hill

[dcheez]

I have an '04 with the 3.4L V6, different engine I know, but I get about 16.5 avg.

[nikita]

I raised my tire pressures (stock 245/70-16 Bridgestones) to 40psi and the mileage increase is significant on my 2005 4x4. I had tried synthetic oil with absolutely no difference. We are stuck with E10 gasoline here and I always run 87. 91 made no difference.

City-hwy mixed commuting was 13-15, now 17-17.5 avg (3 fillups). Last weekend LA-SD round trip 21mpg at 65-70mph with about 40 miles of start-stop traffic.

Downside is harsh ride from the hard tires, but its a truck.

[bendub]

damn you guys got some desent number.s Mine got somewhere like 10-12 all city( commute less than 3 miles one trip). Anyone knows what seem to be the problem?

BTW mine is 04 DC, 4.7l, 20'' rims

[kit]

Well here is the reason for you man:

you got 20's
a 4spd auto
and a double cab

If you would have had the 5spd auto in the 05-06 you would get a little better.

[NoKz]

I get on avg. 14-16

[bendub]

Originally Posted by kit

Well here is the reason for you man:

you got 20's
a 4spd auto
and a double cab

If you would have had the 5spd auto in the 05-06 you would get a little better.

well from what I've gathered, lot of 05/06 guys have some disappointed gas mileage too . Anyway I guess I'm gonna put my 33'' on and be it. Maybe it'll make me feel a lot better

[Blackshear]

I have a 2003 4Runner with a 4.7 V8 and I am getting around 17 city, 21 highway, and 19 mixed. It is completely stock with 94K miles on it. I run Mobil-1 5W-30 and it seems to get the best MPG after a fresh oil change. Never had any major work done just serviced regularly.

[shatto]

Last Thursday afternoon I was sent to Travis Air Force Base to pick up two containers, weighing 700 lbs and deliver them by 2:00 PM Friday to Pinal Airpark in Marana, Arizona, thirteen hours driving time away.
Cool, thinks I. I'll just go home and nap until eleven then take off, rested and refreshed and be there in plenty of time.
My Garmin Nuvi said to get on I-5 and blast south until I reached I-10, in Los Angeles, then hang a left and follow it all the way to the exit, just North of Tucson.
So I did. I wanted to run a mileage test, so I set the cruise control on 'Clyde the Ride' at 65 MPH and just kept going and going and going all the way to Burbank, where I dropped by the Costco and gassed up.
An aside; the Tundra is the first vehicle that could make that trip in one shot. Not the Caddy, Volvo, Sonoma or Dakota, Not Judy's Prelude, nor the Accord or Fiat. Not even the Chrysler Imperial, I inherited on my grandmother's passing. Fun, having long-legs, so to speak.
Well there was a ..... pause. There was a 'sig-alert', meaning go anywhere but on this highway, but by the time I knew about it I was in stopped traffic and we crawled along for almost two hours at 5 miles per hour until we passed the pile of smoldering rubble that was the tractor and front of the semi's trailer, just as we began our drop off the mountains of the infamous 'Grapevine' down to the LA basin.

I wanted to see how good mileage the Tundra would get. This is what I got:

Station Location .... Mileage .... Gallons .... Cost .... Total Cost .... MPG .....MPH
Concord, CA .......... 2,1515 .......... N/A .... $3.699 .... $40.3 .... N/A ....
Burbank, CA .......... 2,1867 .... 19.998 .... $3.779 .... $75.57 .... 17.6 .... 65MPH
Phoenix, AZ ........... 2,2237 .... 20.910 .... $3.479 .... $72.75 .... 17.7 .... 65MPH
Mesa, AZ ............... 2,2441 .... 11.708 .... $3.479 .... $40.73 .... 17.4 .... 65MPH
Henderson, NV ...... 2,2742 .... 16.206 .... $3.659 .... $59.30 .... 18.6 .... 70+MPH
Traver, CA ............. 2,3096 .... 21.853 .... $4.059 .... $88.70 .... 16.2 ....75MPH
Concord, CA .......... 2,3297 .... 12.273 .... $3.699 .... $45.40 .... 16.4...75MPH

1782 miles....... $422.75 for 102.95 gallons of gas by 6 = 17.31 Miles Per Gallon, average.
The Dakota gets only slightly better mileage.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
98 Dakota 3.9 automatic, long bed.
Retired with broken A/C, July 2008.
623,000 miles.
On original engine and transmission, using Amsoil by-pass filters and lubrication.
Bet I could have passed 700.......

+Everybody knows something you don't know.
+Truth does not need to be 'balanced' and it ain't caused by voting or consensus or polls or yelling louder or silencing someone.
+Artists prove truth can be in forms you don't understand.

Low-Risk Option Trader
Retired Pro-Hunter featured in; 'African Hunter', by James R. Mellon III. and listed in; Rowland Ward's Records of Big Game.

[wildbill23c]

Originally Posted by bendub

damn you guys got some desent number.s Mine got somewhere like 10-12 all city( commute less than 3 miles one trip). Anyone knows what seem to be the problem?

BTW mine is 04 DC, 4.7l, 20'' rims

Your not driving far enough for the truck to fully reach operating temperature so the truck is still in "warm up" mode while your driving to work. I know I have the same problem with my 08 Tundra with the 5.7L V8, I know larger engine, but when I do go on long trips I average 17city/23.8 highway. So most of the time I just drive my Jeep to and from work, not worth the bother starting up the beast. LOL.