Diesel vs gas for truck campers?
Have posted a few questios phere on the truck camper forum asking for help in down sizing to a TC and thanks for the help so far, I have been going over the weights of the TC's that we have looked at...
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On the 6.7L 2011+ Ford, it dumps fuel through the injectors on the left bank, four cylinders. On my '15, instantaneous highway mileage goes from about 19 to about 14, for 20 minutes or so. This happens about every 400 miles. It costs about 0.5 mpg averaged over the cycle. I have captured the engine data through the OBD port on several of them.
The latest PCM flash changes the regen strategy to dump less fuel in both banks, all 8 cylinders. This was done to solve a rare problem with the '15-16 trucks. I haven't had mine done yet as I don't have the symptoms, but reports are it impacts mileage less.
You could only do an operator commanded regen on XL and XLT trucks from the earlier years, and only as a factory option. To do it the truck had to be parked and the hood open. This was for those trucks which idle a lot (service and emergency trucks) - idling builds soot faster.
If you do not instrument the engine you would not know the regen is happening. Noise, power, all the same. You will see the instantaneous mileage dip while it is going on.
Here is a capture of a regen, in the middle of it I pulled of the freeway and drove through town and back on the freeway. The regen starts at about 4.7 minutes and stops at about 26.8 minutes:
The latest PCM flash changes the regen strategy to dump less fuel in both banks, all 8 cylinders. This was done to solve a rare problem with the '15-16 trucks. I haven't had mine done yet as I don't have the symptoms, but reports are it impacts mileage less.
You could only do an operator commanded regen on XL and XLT trucks from the earlier years, and only as a factory option. To do it the truck had to be parked and the hood open. This was for those trucks which idle a lot (service and emergency trucks) - idling builds soot faster.
If you do not instrument the engine you would not know the regen is happening. Noise, power, all the same. You will see the instantaneous mileage dip while it is going on.
Here is a capture of a regen, in the middle of it I pulled of the freeway and drove through town and back on the freeway. The regen starts at about 4.7 minutes and stops at about 26.8 minutes:
