So the last couple of runs back and forth form NH to MA, I've used only my front tank. It's almost exactly 100 miles from my door to where I park at school. I used the front tank for that trip only (abour 80 miles on highway, 20 off). Used 17.7 gallons to do 300 miles, 300/17.7=16.9. I'm guessing this isn't too bad considering I was over 70 most of the time, with a constant speed of about 75. The TS chip was on the 75 Horse setting. On the way back up, I was in a rush and it was more like 80 the whole time. How's about 17 for that kind of speed? I have 3.55 BTW

-Robb

 

with 4.10's on 35 inch tires running 80-85 i get about 15-16 at best. if i knock her down to 55-60 i can get 19-19.9....thats right 19.9, i cant touch the 20 mark

 

running 80 ish i get about 16 with 4.10's and 265's

 

is this without trailers cuz when i hit the interstate turning my 315's and pulling a trailer i drop to 12-13 i also have 4.10s and 5-speed manual

 

i got 12 with 4.10's , i'd say your pretty darn good.

 

Thats empty, no trailer, 3.55's and auto. Ok with your numbers guys i'm feeling pretty good. Tomorrow I'm making a run back to Ma, maybe if i can keep my foot out of it I'll do better... Oh wait but the truck LOVES to run at 80+

-Robb

 

thts deffinetly impressive i'm a little jealous

 

Wow me made someone jealous? I'm usually the one jealous of other folks trucks! Wish that I had a Gear-Vendor Double over drive though.. these rigs could use another gear. No way do I have the $$$ for that.

-Robb

 

those things are cool, but wayyy overpriced

 

those are great numbers!! How is 9200 pounds, snow plowing, mostly city driving, 20% highway drive at 65-70 with 3.55's and 285/75R16's last two tanks 10.5 MPG and 11 MPG!! beat that!! I gonna go cry now!!! Can't wait to see what this tank shows since I plowed a foot of wet snow for about 3 hours yesterday!

 

That is some good #s for the speed.
Try this on your way back home.
Test at 60,70 and 80 mph.
See how the ODO compares to the mile markers.

Bill

 

Oh good though Bill! GPS works very well too!

 

running an average of 75-80 with 3.55's and stock (dont make fun, i just got it) tires i've been getting around 19... and i agree w/ rob... this truck loves to sneak to 85 or so... cop just missed me the other day, he pulled over the guy that was about a half mile ahead... i was gaining on him lol...

 

His #s are on winter fuel.
Come summer he will gain a small %

Tj
I installed a truspeed to cal the speedo.
The speedo is like the rest of fords gauges. The its good enough method!
Its a reason why mpg averages are all over the map. Overhead displays (sd) JUNK!

I used the gps with the cc with 60 second mile with mile markers.
This is how i got an average of 60mph. At 60 iam on the money (speedo wise). Above and below it falls off. Just cannot get it to cal acrossed the speedo gauge angle.

Bill

 

Well, I was going to make the pass back to Ma at around 65 or 70 to see what kind of millage I could squeak out of it. BUT the truck has been running so darn good ever since the HPX and FPR shim, it hard to keep the foot out of the GO pedal! On the way back up on sunday I'll TRY and stay out of it. It's just so nice walking by brand new Dura-snacks and Cummings

-Robb