Hey y'all! - Installed a K&N in the stock airbox and noticed a drop in gas mileage as computed by the on board computer. It dropped from about 14.5 to 13.6! Any suggestions? Anyone with a similar experience?

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1998 Expedition EB
- 4x4
- LLS (4 corner)
- Premium MACH Sound System w/6-CD changer
MODS
None yet (But I wanna be like you guys)
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one thing are you letting your foot hang down aginst the floor board more than normal. i lost milage playing around and trying to find where the "power increase" was. that might have something to do with it. if not i have no idea. hope this helps

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2000 4.2l V-6 w/sport package std. cab. 2wd, bright red
billet grille
clear corners
herculiner bed liner
k&n filter
sony head unit
two 10" kicker comps.
sony amp
viper alarm

future:
spindle lift
fipk
chip
headers
exhaust

 

did you reset your computer?

i did, and saw a .5-1 mpg increase in the first tank of gas.

if not, you may have to wait several tanks until your computer "relearns".

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'99 Ford F-150 Lariat SuperCab 4x4, ORP, 3.73 gears
5.4L Triton V-8
Deep Wedgewood Blue



MODS:

• K&N Gen II FIPK
• Fog Lights on w/Parking Lights

MODS TO COME:

• Gibson Dual Sport Truck Exhaust
• A.R.E. LSII Hard Tonneau Cover

 

Thanks guys. I have tried not to alter my driving habits at all. To reset the computer, do I disconnect the battery and turn on the headlights to discharge the electrical system?

 

Just keep driving normally, dbunch. Like you, I noticed absolutely NO change when I installed my Airaid. My truck is my daily driver, and after about 4 days of regular commuting (city and hwy) I began to detect modest changes. After about a week (I'm guessing here) my MPG took off! Just be patient.