Regen and Mileage

[BVANR]

Saw my first regen cycle on the temp guage yesterday. Driving along on the Interstate getting the tyical 17 on the overhead (usually 15. 5-16 by hand when empty) and whamo the temp guage goes up 300 degrees over normal driving and the overhead starts dropping fast! It bottomed out at 13. 3 and when the regen stopped it started back up. It got back to 14. 7 Now, I drove half a tank (26 gallons) at 17 and then in 80 miles went down to 13. 3 and it took the rest of the tank to get up to 14. 7 I can imagine that if your truck is doing the regen repeatedly the mileage is suffering. I'm confident that when this gets solved either by cummins/DC or "solved" by aftermarket companies we will see greatly increased efficiency out of these trucks. Having the C&C I don't think I'm seeing the regens that the trucks are having. I'm also going to start running b20 this week as it looks to me that it will decrease the need for active regens and burn most of the particulates during passive. Anyone out there running bio consistantly in a 6. 7 that could confirm/deny this thought?

 

[RVTRKN]

From what my tech told me, I would not burn B20, he has allready worked on a 6. 7 with problems from burning B20, My 5. 9 needs maint and I will ask him when I get it serviced what the particulars were with the 6. 7

 

[professor39]

I thought I say a statement release recently from Dodge or Cummins approving the use of B20 in the 6. 7L? I will have to look and see if I can find where I saw that.

 

[Caveman]

I've been burning B20 from the Signature stations around town. Your mileage with bio-diesel in any grade will be worse than non bio-diesel. Soybean based bio-diesel especially since it produces less energy under combustion than any of the other veggie variates. Same goes for the flex fuels like Ethenol. Less stored energy per ounce than pure crude based fuels.

I'm not the bio-expert, but I know how to look it up on the web from places like boulderbiodiesel and some of the other forums and blogs. I like to run bio-diesel because it's a small step in sticking it to the oil companies. I ran B100 in my 04. 5. Unfortunately, I don't trust the same supplier to provide Bio-ULSD.