10 in the city, but i dont know about highway because i dont want new tires anytime soon, 1998 5.4 triton, 35'' trail grapps

 

I average 15+ in town and 17.5-18 on the highways.

I have a 2000 F150 XLT 4x4 Triton 5.4.

 

between the CAI and new tires i'm getting 14.8mpg.

 

gotts mod, 6inch lift, 35inch tires, 3.55 gears, 4.6 liter
14 no matter how i drive

 

2002 SCAB 4x4 4.6 - About 14, mix of city/hwy. LT265-75/16 tires.

Got better mileage - about 16 - with stock P255-70/16 tires. Don't know if its the increased size of the tires, the increased weight of the tires, or a combination of both that's caused the demise...

Wouldn't mind it so bad if the 4.6 actually had enough power to go somewhere but its a "dog" compared to the two 5.4's I've had...

 

First trip with "new" 2000 f150 Lariat ex cab 4.6 l. Drove from northern WV to Chicago and back, with some city driving, about 1200 miles. Overall mileage 17.6 mpg. I was pretty happy with that.

 

GD really??? nice

 

2002 4.6 with 145,000 miles..2 wheel drive, factory 275/65/17 tires..

in the city, it's 12-14.. depending on how many red lights i sit at
Highway, i can get up to 20.. most i have ever seen was 22 once from Knoxville to Tampa..just me and some luggage..

 

9.5" lift and 315/75/16's. I average around 14.

 

I see around 15 for my daily commute of around 36 miles. It's interesting that my GPS trip setting usually only shows an average speed of 35 mph between my weekly fillups.. So, even though most of my commute is hwy, there is enough city and stopped time that really cuts into the average speed.

Even when I do a full hwy run, I can see around 18 mpg at best... Going no faster than 60 mph..

Towing, well, I'm happy when I get 10 mpg...

No matter what, you are plunking down ~ $4 for every 10 to 18 miles you go these days!! Oh, how I remember the days of $.99 / GAL gas! (about 10 years ago!)... As a kid, I do remember $.50 / GAL gas... I'm sure some of you really old timers remember seeing it in glass topped gas pumps!

Mitch

 

Just got my '00 ext. cab sport 4x4 with the 5.4l & 3.55 LS last week and am on my 7th tank lol.
Before replacing the O2 sensor, it was a solid 13.1 no matter what! The O2 bumped me up to 14.9.
Then I cleaned my K&N, took a trip from Ark City KS to Seneca KS (Oklahoma border to Nebraska border) and got 16.5!
Coming back I had a Kawasaki 250 in the bed and my buddy driving, he got 15.2.

As a side note, My last truck was a 97 4x4 4.6l. solid 15mpg all the time.

 

^^ nice. Just got 15.6 MPG mixed driving with a heavy foot. 145K on the clock, '97 4.6L 4x2 w/ 3.55 gears. Mods are in mah sig.

 

Well its been awhile for me. I've been enjoying the bike, but I have a mildly built 5.4 sitting on 34's and avg 16-17 in the city, and 19-21 with summer blended fuel. Winter blended fuel I get around 14 in the city but get 21-22 on the interstate. I only ruun 93 because of the added timing I can run... It actually helps mileage...

 

41's with 4.88 i get 10 city 14 highway

 

I don't do city driving.
Highway 17 to 19 best to date is 20.9