17.4 by hand

[JApol]

I just did 526 miles of freeway and high speed hiway driving. Average speed was between 70-80 MPH and I was not being nice to the skinny pedal. When I filled up the overhead was reading 19. 1 and the hand calc came to 17. 4 Oo. Only thing not stock in the powertrain is the rokktech muffler

 

[Hokey]

Nice... I Just came home from a trip and kept it at 65 mph just to see what kind of mileage I'd get and hand calc was right on 20 mpg. I don't bother with the overhead and leave it set on temp/compass. This was on 20% winter blended fuel.

 

[crobertson1]

JApol,



Have you noticed any difference in EGT since you put the Silent Might on? Thanks.

 

[GMincher]

It must be our wonderful underpriced fuel and level straight roads with no traffic!! Greg

 

[JApol]

GMincher



I think you need to get out more, I don't think there is a single mile of MD roads that is either straight or level



Robertson



I have started to get a drone between 67-73. This is also about the speed that I start feeling the front drive shaft vibration. I can't saw either way which one is the culprit. I have noticed an EGT drop. The tone has befinatly changed though. The people on my right really know when I hit the skinny pedal



Hokey



I don't know what the blend of fuel I used. It was a truck stop in Delaware on US 301



I can't believe how nice it is to drive this truck like i stole it and still get better milage than my old gasser after $1500 in intake and exhaust system