18.8 mpg

[Brusky]

200 mile trip this morning all interstate running 75 mph on cruise. Got 18.8 mpg avg. not bad for a 4x4 on 33s

 

[superexpy]

200 mile trip this morning all interstate running 75 mph on cruise. Got 18.8 mpg avg. not bad for a 4x4 on 33s

You show me a expy with good gas millage and ill show you a lair! J/K I to have been getting good millage but not that good. My problem is my peddle always finds its way to the floor.

 

[01yellerCobra]

We're heading out of town tonight. I usually get 16-17mpg on this trip. I just installed a Spectre CAI. I'm curious to see if it helps at all.

 

[Brusky]

This was my first long trip since installing the headers. And I just pulled the intake plenum and throttle body and cleaned them to like new condition when I replaced the egr valve. I'm sure that all helped. I also have 3.55 gears. I'm only running 1900rpm. At 75mph

 

[01yellerCobra]

That's about the same rpm I run with 3.73's.

 

[atmasters]

How can you tell what rear end you have ?

 

[Whack]

Can you get the axle code off of the Ford manufacture plaque?

http://www.vibratesoftware.com/html_help/2011/Ford/vehicle_certification_label.htm

Then google the code. Hint: 'I6' is open 3.73, 'H6' is limited slip 3.73

 

[RockyF150]

grr. i'm stuck in the 14's, no matter where or how, always.

 

[superexpy]

That's about the same rpm I run with 3.73's.

Me to!

 

[kmh1596]

200 mile trip this morning all interstate running 75 mph on cruise. Got 18.8 mpg avg. not bad for a 4x4 on 33s

Was this according to the lie-o-meter on the dash or your own calculations starting with a full tank, driving 200 miles, then topping off again and dividing the gallons by the miles traveled?