So, I decided to do a little test and finally it worked out exactly how I wanted when I filled up. I drove the same exact route (just 70 miles though), kept everything the exact same as I could and was hoping to have one route with a regen and one without. Finally it happend. I filled up just like I normally do (round up to the next nearest gallon), at the exact same pump and kept my driving habits exactly the same, just 1 day apart (one trip on the 16th and the next one was today on the 17th. I filled up, drove 70 miles with no regen, filled up again, drove 70 miles and it went into regen during the trip, so I filled up at the exact same spot as I passed by the day before. It was about as near as perfect as a test you could do I think, lol.
Truck is a 2008 Job 1, Extended Cab SWB, 4x4, 3.73 Gears, bone stock.
69.4 miles, 5 gallons (clicked off at 4.4 gallon) = 13.88 MPG (or 15.77mpg when it clicked off)
70.1 miles, 7 gallons (clicked off at 6.3 gallon) = 10.01 MPG (or 11.13mpg when it clicked off)
Either way it doesn't really matter which way you look at it. That right there shows you EXACTLY what kind of difference these DPF's make in our trucks. Basically 2 gallons of fuel was injected into the exhaust to burn off, WAY TO GO EPA!!! Too bad you can't take these stupid things off.
Maybe one day they will realize what they are doing and let us take these things off legally and without voiding warranty and giving us a $10,000 fine. Yeah, yeah I know.......
Anyways, just figured I would share that tid bit of info. Some may find it interesting.