MPG in the Real World

Haha! Airtabs would help a bit unloaded and with a lower profile load closer to the cab, that therr gap is a bit much. Installed properly, airtabs do give pretty good results in some applications such as OTR box van or reefer trailers. Low speed, frequent stop, or awkward, unaerodynamic loads will cause diminished results, may not be worth it. Of course, some rigs are just to cool, make it worth spending more on fuel to avoid those things

 

Drivers forget all the time.....you can't break the law of physics.

It takes fuel to make horsepower and horsepower to pull whatever. An engine requires X = BTU's per cc's / stroke and the computer will feed that amount to the engine to complete the work requested ( by your foot ) to the spec output.

As we move to summer blends on fuels then we will see our mileages drop. The EPA wants to remove more sulfur ( ppm content ) from your fuel as we speak. This will decay your mileage worse. We'll all be lucky to get 4 mpg soon enough.

5.2 might be bad in your mind but that's all I get all the time.

JMO

 

i avg over 6.... love my Cat

 

7 - 8 mpg depending on everything. getting better this spring

 

I got 6.2 to 6.5 with my cat hauling anywhere from 40,000 to 45,000 on a bad run maybe 5.8

 

I'm with ya. Average in the mid to high 7's. Lowest average per month all winter was 6.5 mpg.

 

Do i understand you correctly that this was a long haul load?