Ford F-150 5.0 Fuel savers

[scandiamn]

I have tried platinum, turbonator, magnets and also fuel concepts. I have absolutely no improvement in fuel economy. Can anyone tell me if they have tried halo spark plugs, or any product that would improve mileage? I consistently get 12 miles/gallon in town and 14 on highway. It is 4 x4 with 5 speed manual.
I need help to decide what to try next.
scandiamn

[DarbyWalters]

Possibly a taller, skinnier highway tire to give you a taller gear ratio end result.

Pull out the front driveshaft until you absolutely need 4WD...if it is a slip yoke and won't leak.

Synthetic Fluids.

Get out any extra weight...even the spare...carry a plug kit for flats.

Can you start out in 2nd gear instead of first...that helps sometimes.

Tonneau cover for the bed for better airflow.

[omgwtfbyobbq]

Drive slow in top gear. Don't waste energy giving it gas then slamming on the brakes. Etc...

[rh77]

Welcome to GasSavers...

Check out the new members thread (in my sig). You can choose to either modify your truck, and/or drive efficiently.

Best FE to ya...

RH77

[Danronian]

Welcome!

Look around the site and you'll find a wealth of fuel saving information here!

[trebuchet03]

Change the driver

[rh77]

Originally Posted by theclencher

too bad ya dint come here first

if you figger out the 5oh f150 lemme know

yood think he'd do better than me with the 5sp mt but mines yoosually 18 or so, as bad as 12 pulling

You said it!

Anyways, magic-pill type stuff rarely works if you look at the links that I recommended. Driving style and time-tested mods should improve that percentage.

RH77

[lovemysan]

Ford 5.0, now thats a classic engine. How many miles on it? What year? Any trouble codes? Have it scanned for hidden ones that don't actually throw the light.

Check the distributer timing and maybe bump 2 degrees
Sparks plugs (most on here will suggest OEM)
Check your plug wires with an ohm meter , they should be less 1000-3000 ohm's per foot.
Is the EGR dirty?
Is the PCV working?
What shape are the cats?
How is the alignment?
Are the brakes dragging? Jack it up and spin the wheels.
How are the wheel bearings? (I strongly suspect that given the fine tolerances involved that cheap bearings could be more inefficient)
What tire are you running? A highway radial would be best something that allows around 50lbs pressure or better.

[Snax]

Unless you want to go nuts with aerodynamic mods, the driver is the number one place to start.

[NH Titan]

scandiamn,

What driving techniques do you use or try? What is your trucks epa rating? Is your truck stock? Where do you do most of your driving, highway, country roads, city?

Give us some background and we can help you out better.