Mpg?

[cbiii]

Im seeing people claim anywhere between 14-20 mpg so im wondering why im only seeing 11.7-12 mixed (mostly highway) in mine? I just changed plugs about 300 miles ago and oil 2 days ago.. Ill be tossing in a new air filter tonight or tomorrow also but I dont see that being the issue.

*edit* 99 5.4 EB.

 

[aircargoo]

if im on "e" and i put $20 in.....i get 85 miles its 8 gallons....or maybe liters come to think of it.
better cb....use your mind.

 

[cbiii]

if im on "e" and i put $20 in.....i get 80 miles.

thats chancing it to...85 if not mistaking.the ONLY weight i carry is spare...trucks empty.city miles ONLY...and not pushing hard from full stop or light.

over 8 gallons...8 1/4 gal.

...none of that makes sense.

 

[GAINMOB]

it mainly because we have modded our trucks...we all have aftermarket intakes or performed the GOTS MOD, changed our exhaust, and have programmers...at a minimum.

 

[cbiii]

it mainly because we have modded our trucks...we all have aftermarket intakes or performed the GOTS MOD, changed our exhaust, and have programmers...at a minimum.

in my experience, modding cars HURTS fuel exonomy.. what were people getting before mods?

 

[WCAWI]

I've had 5 Expeditions over the years. Just a K&N filter was the only thing changed. I've always gotten 11.8 - 12 mpg city hiway combined. On highway I can pull around 15 if not pushing it.

in my experience, modding cars HURTS fuel exonomy.. what were people getting before mods?

 

[fiveohpoepoe]

This is my 4th 1st generation. Most I ever got on the hwy was 16.2 and that was in my 99 with the 5.4 on 33,s. Lowest I have in town was 9.5 with one of my 98,s with the 4.6 and stock tires.
At most a Flowmaster and K/N with the above numbers.
Now I have the Motts and a good idea of the mpg prior to it. Also have a new SCT, but havent driven enough to check the mileage

 

[GAINMOB]

i have k&n intake, flowmaster exhaust, superchips vortex programmer, AND 24's and i get 19 city and 23 hwy...

 

[Expedition]

i have k&n intake, flowmaster exhaust, superchips vortex programmer, AND 24's and i get 19 city and 23 hwy...

i call bs........ i have way more then that and i barely see anything close to 14

 

[Expedition]

and i have a custom tune too...