Yeah. I was in Harford working at Pratt as a Co-op over the spring summer and fall. I am headed back after I graduate from RIT this spring to work as a test engineer full time.

 

can anybody give me some advise...im the one getting 9 miles a gallon here, if i was getting 12-14 i would be the happiest man on earth

 

Start with replacing little and cheap things like plugs and filters. I saw a big boost in mpg when I replaced the spark plugs.
DSCN0011.jpg
For some reason my engine likes eating spark plugs. The electrode was warn down to the ceramic insulation.

Is your truck throwing any codes?

 

Exactly what ^ he said. Change plugs/wires and see what that does. Make sure your tires have the proper pressure and make sure your air filter is clean. Heres a list of things you can do.
http://www.ehow.com/how_6193_gas-mileage-with.html

Also, on my 4.7 I got rid of the resonator and installed a Modular Intake Tube directly to the Throttle Body from the filter box. That got me a couple MPG boost in the city and now I get up to 21 on the highway. Heres a pic of it.
http://s1176.photobucket.com/albums/...0SLT%204700cc/

 

'01 Dak Sport, 4X4, auto, Undercover bed cover, still mostly stock/OEM with 181k

Just filled up ('economy' tune 87oct): 15.1 mixed city/interstate

Tank before('economy' tune): 15.4 with leaking exhaust manifold and bad crank sensor

When I bought the truck it had no bed cover and was bone stock: 11-13 avg, 14-15 best on long interstate runs

Added throttle body spacer (I know I know snake oil and all that) 12-14 avg and it repeated consistently

Super chips programmer: best I've seen was one tank all but 100 miles on interstate with cruise @ 70 was 19.5 with the truck 'towing' tuned and buring 93 oct

Worst was the trip back pulling 6X10 med duty trailer with ~1800lbs of cargo: 11.3 at ~65-70

We'll see what she does with high flow precats, no third cat, and some kind of high flow muffler when I can get the $$


Ofcourse she drags bad from all the antennas on the roof too

Forgot to add: 355 gears and Micheln LTX 265-70-16's

 

TB spacers dont do anything for fuel injected cars

 

Are these all 4wheel drives w/ the 12-14 city,17-19 highway?
Putting together a dakota quad cab 2000 4.7 - 2 wheel drive and hoping for a lot better fuel mileage then mentioned here. I drive 75 miles to work and need something I can carry my kids in. Dumping my 4 cyl ranger that only gets 21 miles to the gal.
Shoooo hope I can get 20 out of the quad cab. Not sounding good listing to you guys thou!

 

No wires on a 4.7...

 

Buy a car.

 

I got 15.9 on E10. With 50/50 split city/highway, and the occasional WOT drift around a corner, and probably 25 or more WOT runs to 55mph.