[Hargis]

I bought a 15' F350 CCLB DRW KR a little over a week ago, took everything off this last weekend. Drove from Tulsa to Corpus yesterday. I averaged 14.2, before I averaged 14.7.

Has flo~pro 5 inch w/ muffler, AFE momentum HD w/10R filter, no limit EGR delete with flow through plate, and SCT Livewire from Rudy's which I believe has PIP tunes.

Curious if anyone has any ideas why this is, doesn't seem to coast well now either, my first thought was exhaust brake being partially closed but I tested it and it seemed to still work.

Any help would be greatly appreciated

 

[Hargis]

Also I'm new to the forum so if I'm in the wrong section or anything let me know

 

[HeavyAssault]

Clock a few more miles. I'm getting pretty consistent results.

 

[jimmy]

Max Tow pkg with 4.30 gears?

 

[Hargis]

No it was 3.73. I have another 1500 Mike trip next weekend. I'm hoping it was the heavy head wind but I find it hard to believe it would cause such a big loss

 

[Phillippeterson]

No it was 3.73. I have another 1500 Mike trip next weekend. I'm hoping it was the heavy head wind but I find it hard to believe it would cause such a big loss

At 60 mph a 20mph headwind increases drag by 78%. That's a HEFTY drag penalty. You didn't say how heavy the wind was, so I just used a 20mph headwind as an example.

 

[SkiSmuggs]

Headwinds take a huge penalty, even more when towing. With my F150 Ecoboost, I had been averaging 10 mpg towing until I hit the stretch from Oklahoma City to Amarillo with strong headwinds and I got 6 mpg.

 

[Hargis]

I was driving with a pretty bad headwind, I'm heading north back to Oklahoma today, small tailwind right now, sorry been out of service for the last week