http://www.thedieselgarage.com/forum...ad.php?t=43802

Post number 7 and 8.

 

I would call BS on that one. The guy said it was a 06' 6.7L for one and for two there is no way without the exhaust being gone.

 

22mpg w/load? Surrrrrrrrrrrrrrre. Maybe down hill, with a tail-wind.

6.7 in 2006?

 

Mine gets 12 if I am lucky with a load.

 

Still better than me yet - 10.5 m.p.g. towing anything, large or small. 40k on the clock.

 

Ya BS across the board... People actually believe these numbers??? Crazy... maybe 22mpg idling being towed, not towing!!

 

What he ^ said.
Better wear high top boots to read that thread.

 

A bacco? Very interesting.

 

Today going on a 90 mile trip I averaged 19.2 with out ulsd. That is by far the best I have ever seen in my truck. My dad still has a tank of the old diesel at his farm. It makes my truck run so much better and lot better mpg.

 

I bet it plugs up the DPF real good too although from your sig apparently you don't have one??

 

You could get 22mpg in these trucks for one tank. First, you fill up in Vail Colorado..then you drive to denver. It's amazing how much better mileage you get when gravity helps you drop 6000 feet. Other than that though...I would have to stand on my desk while someone told me about 22mpg while towing.

Bill

 

I am guessing that is because you have 4:10s if I read your sig correctly.

 

LOL, BS. The best I've ever seen is 13mpg towing a 12,000 load on the highway. Unloaded it showed 25.9 as the highest though, which who knows how accurate the computer could possibly be.

 

My Dad just pulled his first load in the 6.7L MC with a whopping 300 miles on the odo. 6k lb enclosed car hauler for a average of 10mpg (hand calculated).

MikeyB

 

AN 06 6.7L, I thought they came out in 07??? It must of been a super duper covert beta model