best way to improve gas milage on 5.4L? - F150online Forums



best way to improve gas milage on 5.4L?

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Old 09-23-2010, 10:43 PM
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best way to improve gas milage on 5.4L?

What is the best way to improve my gas milage on my '05 5.4L?
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Old 09-23-2010, 10:44 PM
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drive down hill?
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Old 09-23-2010, 11:00 PM
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your right foot.

also keep up with oil chages plug chages. your air filter.

and o2's i changed my o2's and got 4 more MPGS.
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Old 09-23-2010, 11:37 PM
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Originally Posted by droptine1 View Post
What is the best way to improve my gas milage on my '05 5.4L?
What are you averaging? - The way you drive and keeping up with maintenance.
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Old 09-23-2010, 11:39 PM
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Anybody here using one of those fuel programmer devices that improve your horse power and milage?
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Old 09-23-2010, 11:44 PM
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For your model, - you better read this, from Ford -

http://ww2.justanswer.com/uploads/ti...call_07M08.pdf
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Old 09-23-2010, 11:45 PM
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Originally Posted by droptine1 View Post
Anybody here using one of those fuel programmer devices that improve your horse power and milage?
I have a gryphon and it has a base tune.. It improved my mileage but only because it allowed me to correct the tire size for calculations really. The base tune only improve shifts the 2nd is a tow tune the third is a performance 93 tune. I dont really think they do much for gas mileage. I like it though.
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Old 09-24-2010, 12:16 AM
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Thanks!

thanks for the info on the injectors Jethat,I'll have to check into that!
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Old 09-24-2010, 01:12 AM
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Get 3.15 gear ratio.

Also get a used Honda Civic to drive.
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Old 09-24-2010, 09:22 AM
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Also get a used Honda Civic to drive.
Aren't you just a basket full of good ideas? I'm surprised you didn't suggest getting a prius.

- NCSU
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Old 09-24-2010, 10:37 AM
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gotts mod? exhaust, slow acceleration. shifts under 2K
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Old 09-24-2010, 10:48 AM
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Get 3.15 gear ratio.

Also get a used Honda Civic to drive.


the 3.15 axle ratio has been proven over and over and over again to yield worse mileage...
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Old 09-24-2010, 10:57 AM
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the 3.15 axle ratio has been proven over and over and over again to yield worse mileage...
agreed. Lower gears are needed to get these beasts moving..
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Old 09-24-2010, 11:02 AM
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Originally Posted by tradosaurus View Post
Get 3.15 gear ratio.
Quote:
Originally Posted by tarajerame View Post

the 3.15 axle ratio has been proven over and over and over again to yield worse mileage...
If you haven't seen Craposaurus's other posts, it pretty apparent he forgot to pay his brain bill this month.

- NCSU
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Old 09-24-2010, 11:02 AM
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unless he drive downhill all the time
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