For an old 2V 5.4L, 12 MPG isn't too far from normal if your talking about city or mixed driving.
There are a few things you can do to squeeze another 1-4 MPG from your truck. Keep the RPM's below 2000 while accelerating, coast to stops and into turns, inflate your tires to the max on the side wall, lose the off road tires and big rims, remove unnecessary weight from the cab and bed (tool box), stay under 65 MPH on the highway. With as many miles as you have, I would just replace the MAF (buy OEM). Hook the truck up to a code reader. You may have a code for an 02 sensor or MAF in memory even though the check engine light is not on.
For an old 2V 5.4L, 12 MPG isn't too far from normal if your talking about city or mixed driving.
There are a few things you can do to squeeze another 1-4 MPG from your truck. Keep the RPM's below 2000 while accelerating, coast to stops and into turns, inflate your tires to the max on the side wall, lose the off road tires and big rims, remove unnecessary weight from the cab and bed (tool box), stay under 65 MPH on the highway. With as many miles as you have, I would just replace the MAF (buy OEM). Hook the truck up to a code reader. You may have a code for an 02 sensor or MAF in memory even though the check engine light is not on.
Like the guys above mentioned, good maintenance practices and driving habits will help the most. Make sure to keep all fluids, filters, and sensors in good working order, slow down, and use the cruise whenever possible. One other item I didn't see mentioned was the coolant. Make sure yours is clean and has the correct mix to keep your engine running at its optimal temperature. Each one does very little by itself, but add them all up and you should see a sizable difference.
As Stealth said it's no fun taking all of the pretty stuff off, however as greencrew pointed out pretty is getting very expensive.
For an old 2V 5.4L, 12 MPG isn't too far from normal if your talking about city or mixed driving.
There are a few things you can do to squeeze another 1-4 MPG from your truck. Keep the RPM's below 2000 while accelerating, coast to stops and into turns, inflate your tires to the max on the side wall, lose the off road tires and big rims, remove unnecessary weight from the cab and bed (tool box), stay under 65 MPH on the highway. With as many miles as you have, I would just replace the MAF (buy OEM). Hook the truck up to a code reader. You may have a code for an 02 sensor or MAF in memory even though the check engine light is not on.
I got my '01 HD from 11mpg to 13 by pretty much doing the above. I have a K/N 77series and I still have the 20" rim/tire combo.
Im looking into getting a tune but if you wisper "tune" and a shouting match over which tuner is best occurs.
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Ned B.
Newport News, VA
2001 Harley Davidson F150
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on my 02 5.4L 4x4 my milage dropped as followes in order as mods were added. stock-16mpg superchipped-14mpg flowmasters-13mpg 285-70r17-12mpg whats up with that? im scared to do anything else in fear ill hit the single digits.
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