what kind of mpg do you get?

I don't drive a big rig at the moment, but I do have an '01 Dodge Cummins that I haul cattle with. I've installed a Bully Dog product and have sign a 2 to 3 MPG improvement over stock. I've heard that they have developed something similar for the big rig market similar to what Pittsburgh Power has.

 

Well said Brick!

Here's mine

2003 W900L, C-15 CAT propably over 1000hp at the engine, 18 speed, 3.55s, 290"wb with a 48' spread axle reefer. Always 80,000lbs if not more, with about 4 feet in between sleeper and trailer, yes very un-aerodynamic.

Last trip from west coast and back i got 5.7mpg, with a very hot pyro reading do to turbo not pushing enough air for new ecm. With new turbo i bet ill be around 6mpg. This is pulling a very non aerodynamic reefer 4500 mile round trip

 

2008, 387, Cummins 450, 355 Rear, 13 Speed Reefer , 62mph Top.

Heavy Most All The Time

6.3 From Or. To Denver, And 6.85 To Memphis.

 

I drive a 2007 Silverado, I get 14 city and 19 highway, around 14 or less in 4 wheel drive. My husband drives a 2000 Chevy Venture he gets 20 highway.

 

People who bag on CATs have to realize that most of your "bad" millage with a CAT is achieved with large cars, sine 80% of your long nose trucks are CAT powered and you're vacum cleaners are detroit, vulva, whatever. You stick a 550hp CAT in a vacum cleaner century and it will get 7mpg......... If spec'd right ofcourse

 

Oh and when i was pulling trains in MI grossing 160K+lbs i would get 5mpg out of my 550 stock CAT. Guys with detroits, who were always complaining about lack of power with the weight, would get 3.5-4mpg.

 

Nah ive seen some, they got those high-flo radiators, they can handle them. Just like the older 387s half of the grill opening was the rad half was the intercooler.