03 Navi 18k miles 11 city 16 hwy.
Fuel mileage?
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
Likes: 20
From: Washington State
Originally Posted by VegasSuperDuty
I can not get better than 11.5 mpg. On top of that the Navi has got to be the slowest vehicle I have owned.
I would probably take it in to have it checked. That 4V 5.4L should do better that that and have a bit of *umph* to boot.
My 03 XLT 5.4L ain't no hotrod but I wouldn't describe it as the slowest vehicle I've ever owned.
...and it's only 260hp.
Logistics Pro
Joined: Oct 2000
Posts: 3,960
Likes: 5
From: All over Texas
Originally Posted by VegasSuperDuty
On top of that the Navi has got to be the slowest vehicle I have owned.
At 1500 miles, you're not even broken-in yet. You should see improving mileage as you get more and more miles on the vehicle.
Thread Starter
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Senior User
Joined: Dec 2003
Posts: 215
Likes: 0
From: Las Vegas
Originally Posted by buzzard
It's all relative. What's the next slowest, a Vette?
I will check it on a trip I am taking to Colorado and see what actual highway mileage is. The mileage I have been getting is from half highway half city.
Maybe in a few thousand more miles it will get better. Synthetic is to go in at 2500 miles as well.
Thanks for the help guys!
Mark
Elder User
Joined: Apr 2003
Posts: 871
Likes: 0
From: Perkasie, Pa.
Why did you buy the navigator in the first place? If you bought it for speed and quickness, then you bought the wrong vehicle. If you bought it for good fuel economy, then you bought the wrong vehicle. If you bought it for towing, cargo/passenger room, style and luxury then you bought the right vehicle. It's really that simple. It wasn't built for 0-60 times or good fuel economy.
Thread Starter
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Senior User
Joined: Dec 2003
Posts: 215
Likes: 0
From: Las Vegas
Originally Posted by bigdmizer
Why did you buy the navigator in the first place? If you bought it for speed and quickness, then you bought the wrong vehicle. If you bought it for good fuel economy, then you bought the wrong vehicle. If you bought it for towing, cargo/passenger room, style and luxury then you bought the right vehicle. It's really that simple. It wasn't built for 0-60 times or good fuel economy.
Here is the concern, it has the least acceleration and worst gas mileage of its competition. Oh well, I do have to say I still like it.
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Senior User
Joined: Feb 2005
Posts: 285
Likes: 0
From: Ft. Worth, TX
I have 1 99 Exp 5.4, 76000+. I have installed a K&N FIPK, Gibson 3" cat back and Flex-A-Lite electric fans. I get 14+ city and 17+ highway at 70 - 75. Best I have ever done was 19.9 across Wyoming.
