How much gas your Expedition use?

[Milwaukee]

Had trip on last Friday to Saturday. 500 miles.


It got 516 miles on 26.443 gallons

Had 186,185 miles right now since 157K back in March 2013.

 

[rob21]

took a trip this past weekend. Averaged 18.6 in my 2000 XLT 4.6

 

[GAINMOB]

Mine uses all of it...then I put more in...the funny thing is i keep doing it every week...lol

Holy Rollerz Christian Car Club (HRC3)

 

[jsawyer1181]

Too much!

 

[Expyguru]

After first tune and trans shifting late i got 6.7, new tune with hard shifs at later rpm I avg. 9.8 all highway and heavy throttle. You want to save gas get a vacuum gauge and keep it at -10 and you will see improvement. when gauge is at 0 you are sucking fuel

 

[GAINMOB]

What do u have going on for such low numbers?

Holy Rollerz Christian Car Club (HRC3)

 

[toms89]

What do u have going on for such low numbers?

Holy Rollerz Christian Car Club (HRC3)

http://www.expeditionforum.com/members/42009-albums319.html

I was curious as well.....

I would venture to say its being lifted and has much to do with the stage two cams. Designed for hp, not low rpm fuel economy.

 

[jsawyer1181]

That was kinda my thought too. I get higher then that myself.

 

[Expyguru]

I believe it mostly the lift and cams like Tom said. The wheel and tires are heavy and the big part with that is I have not regeared yet. Still has the stock 3.73 don't want to regear till I add my suspension lift and just knock it out all at once. With my plan is 4.88 with 39x14.50x20. I'm curious to see what it will be next week after swapping pulley sizes from 2.87 to a 2.50 on the SC.

 

[IMINYOURCHAIR]

I got 16.5 this weekend over 220 miles with 150 of that spent running back and forth to move things to a storage building. not bad IMO I was expecting less...wayyy less

 

[GAINMOB]

My superchips did...but I wish I had the custom tunes from 5startuning in vender section instead of the can tunes

Holy Rollerz Christian Car Club (HRC3)

 

[rtbrjason]

I got 16.5 this weekend over 220 miles with 150 of that spent running back and forth to move things to a storage building. not bad IMO I was expecting less...wayyy less

That definitely seems oddly high with any city driving. I can just barely touch 16-17 with 100% highway trips. Mixed is typically 12-13 for me. That is as per the fuel usage computer, though manual calculations are typically close to the computers.

 

[IMINYOURCHAIR]

That definitely seems oddly high with any city driving. I can just barely touch 16-17 with 100% highway trips. Mixed is typically 12-13 for me. That is as per the fuel usage computer, though manual calculations are typically close to the computers.

that's from the mileage divided by gallons used. I filled up, drove, filled up again then used those numbers. Mine is the 4.6 so it may do better?

 

[ks10308]

not enough mpg

 

[toms89]

Maybe I can convert my Expy to all electric...

 

[shadow460]

So does the Gotts mod help? It looks easy enough to do. I get close to 15 highway and about 11.5 city. I'm doing a lot of ultra-short hops throughout the day, though.

 

[z168]

12 here 50/50 city and highway

 

[99EB4x4]

Mpg

16 Highway. 13 Average. was getting 11 and sometimes 10 but switched to premium fuel. If you pull out the owners manual of a 99 It says ford reccomends 87 octane for this vehicle. Next paragraph down it says the automobile association of america has determined that this engines runs best on premium fuel and ford reccomends using premium when available.... very contradicting.... So I did some more digging and starting in 99 on the pi 5.4 they use a "wideband" knock sensor that can basically addapt to whatever fuel you put in it at the expense of torque and mpg. the only performance gain i noticed is at very low rpm on the highway like 1600rpm... it pulls harder without downshifting. i see no difference in higher rpm power.

 

[metaldrgn]

I got 10.07 MPG so far calculated by fillups in my 03 Expedition. Worst of all the cars I own.