[Sellitwv]

Averaged total of 19.0 mpg with cruise control set on 74 to 75 the whole way. Mostly flat with very little 2 to 3 percent slope areas on the interstate. Just food for thought

 

[nihilus]

Nice, good for a big truck. What;s up with your fuel guage? It looks goofy, like it is offset or something....

 

[Sellitwv]

Think it was just the angle of my phone

 

[MoparProud]

Does the computer jive with hand-calc?

 

[nihilus]

I see, 75 KPH which is about 45 MPH not 75 MPH.

 

[Footloose301]

Cool. That's exactly what I'm getting too. I'll get 21mpg at 70-72mph and 19mpg at 75mph

 

[Sellitwv]

The picture was taken at 2 different times. The one that says update is when u turn the truck off. The other is when I was almost home and yes I was going 45mph at that point. But the 18.8 was an average of the whole trip up until that point.

 

[Sellitwv]

Does the computer jive with hand-calc?

Up until this point it has been pretty accurate. I haven't calibrated fuel yet to the digital on this trip yet.

 

[nihilus]

Yep, TFL showed it to be accurate too.

 

[Jasonmotox]

That's pretty much what I'm getting at 75mph. Best was 22mpg doing 65mph for a 25 mile stretch of road construction.

 

[Sellitwv]

Your dash looks different than mine? Pro4x and different trim levels different?

 

[bottlerocket]

This would be great if the 5.0 gets high teens for milage.

 

[Sellitwv]

Not trying to sugar coat too much. It was I would say 90% highway with cruise set MOST of the time. Only hammered down a couple times to pass people. On my daily country driving of country roads I get about 15mpg but my trips tend to be short under 10-15 miles on average each way. As my truck is breaking in the mpg is improving. And it seems Like the harder I drive it the better mpg I get (that is weird I know)

 

[Jasonmotox]

Your dash looks different than mine? Pro4x and different trim levels different?

It looks different because it is:grin2: 2016 Duramax

 

[6Scorpian7]

Well, the mileage is better than a 5.6 pro4x.