Drove my '95 powerstroke (5 spd., 3.73 diff.4x4 x-cab)
for 150.000 mi. ,loved it.
Bought a new 2001 (6-spd., 3.73.4x4 x-cab) and haven't
been impressed with the engine(suspension&brakes are a
unreal improvement)Have 18.000mi on it now,never better than
16 mi/gal; old one got 18 all the time &up to 20 with summer fuel
in the fall;ford has done cylinder contribution test couple times and says it is within parameters(although i think the test isn't quantitative,just acceptable or not acceptable)
It just seems to be rough between 1500 and2400 under light
throttle smoothing out more from2500to2900 rpm where it actuallyan animal;Had it dyno'd tor. 465@2050 Hp was245@2850
Do I need a) chip b) new truck c)psychologist

 

if you put both the trucks on a dyno the 01' would win. More power comes with a price i guess. My 02' gets 14 mpg with 295/75/16's. with the 235's i got 17. My dad's 95' also gets 17-20 but its not as fast as mine . i wouldnt stress about it. if you want get some gauges and a chip.

 

The newer truck has a turbo lag because of the intercooler. If you can't live with it, get a chip.