I'm hearing a lot of reports that are in the 12-15mpg range. I opted for the 4.30 gears, so I will probably be closer to the 12mpg side of things, especially after the lift. I hear nothing but disappointing reports about the 5.4L in the superduty, most say it is gutless. I think it would be worth the extra 600 bucks to upgrade to the V-10.

As for the beefier tranny's, the dealer said that is not true. He said the transmissions will be identical regardless if it is 4.10 or 4.30 gearing. I hope he's wrong on that, it would be nice to have a tranny with the word "super" in it.

 

The 'beefy' tranny is the Torqueshift. I have that in my 06 V10 w/ 4:30LS. This is the same tranny offered in the diesel of that year (and 07 too) and that pull monster put out at least 550 lbs/torque. So if my V10 is hitting 450 lbs/torque the Torqueshift is EASILY capable and strong!!

 

I believe all the Super duty's for 08 have the 5 speed torque shift with tow haul mode. This tranny was beefed up for the torque in the new 6.4 Power stroke, but the gassers get it too!!!

 

My dash gauge say's 11.0-12.0 thats about 90% 30-45 mph in town back and forth to work. will get an actual math calculation next fuel. only put fuel in her once since picking it up a week ago. will have to get used to this 38 gal tank, 1/4 tank cost me over $30.00, I figure on E about $100 to fill.

 

Yup..Yup...I hear that!!

 

I don't feel too bad paying 15 cents more per gallon for diesel than REGULAR gas. I average about 14 MPG around town, which is better than my F150 got. I usually kept the F150 tuned for 93-octane, so I would be paying more for gas than diesel anyway. Plus I get the ultra-cool twin-tip tailpipe!

 

Definitely cool! I really like the look of those twin tips! I may have to get a set of those for my truck.:santa: