Notices
1997 - 2006 Expedition & Navigator 1997 - 2002 and 2003 - 2006 Ford Expedition and Lincoln Navigator Discussion

E-fans help

Thread Tools
 
Search this Thread
 
Old Apr 24, 2009 | 06:12 PM
  #16  
apgarassoc's Avatar
apgarassoc
Senior User
Joined: Apr 2006
Posts: 139
Likes: 0
What mileage improvement did you see?
 
Reply
Old Apr 26, 2009 | 10:00 AM
  #17  
Modified 99's Avatar
Modified 99
Senior User
Joined: Feb 2005
Posts: 285
Likes: 0
From: Ft. Worth, TX
I can't really tell from one "enhancement". I added a Gibson 3" cat back system and a K&N FPIK at about the same time. I can usually get 18 to 19.5 on the highway if I don't have a strong head wind. Recently I came back from Sacramento to Ft. Worth via Phoenix and got 20.2 mpg for the whole trip, but the wind was on my back.
IMHO 50% to 75% of your fuel economy is in your right foot, if all tire pressures are up.
 
Reply
Old Apr 26, 2009 | 10:14 AM
  #18  
Johnny Langton's Avatar
Johnny Langton
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
Originally Posted by Modified 99
I can't really tell from one "enhancement". I added a Gibson 3" cat back system and a K&N FPIK at about the same time. I can usually get 18 to 19.5 on the highway if I don't have a strong head wind. Recently I came back from Sacramento to Ft. Worth via Phoenix and got 20.2 mpg for the whole trip, but the wind was on my back.
IMHO 50% to 75% of your fuel economy is in your right foot, if all tire pressures are up.
I can assure you that the catback and K&N kit did absolutely nothing for fuel mileage.
JL
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
OldWoodsDiesel
1994.5 - 1997 7.3L Power Stroke Diesel
15
Sep 3, 2014 06:08 AM
bbender85
1997 - 2006 Expedition & Navigator
1
May 28, 2013 03:55 PM
trsimmons25
1997 - 2006 Expedition & Navigator
12
Sep 7, 2011 08:56 AM
Bayer-Z28
1987 - 1996 F150 & Larger F-Series Trucks
11
Mar 30, 2010 03:47 PM
heymrdj
1997 - 2006 Expedition & Navigator
5
Jan 3, 2008 09:21 PM




All times are GMT -5. The time now is 11:46 PM.

story-0
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-1
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-2
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-3
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-4
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-5
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-6
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-7
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-8
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE