Originally Posted by mefly2
we intend to replace the DPF - but only after the warranty is gone ...as they told us it would void the warranty. .
One more comment on the your truck, you might read up on some of the Cummins forums, seems like people see improvements with removing the DPF and EGR in non towing situations but not much while towing. So you may want to balance cost vs useage. I.e. if you put on a lot of miles towing but not much while non-towing you will take a long time to pay for the costs involved.
Also as stated the mileage will go up after break-in which may take up to 50k depending on how you drive. Also these trucks are very sensitive to speed. I have 67k on my 4 x 4 2008 (which has the same emissions package) and based on my experiernce your towing mileage seems in the ball park for speeds around 60 +/- a little but I have never seen anywhere that low non towing even when it was new. With summer fuel, 14 in town new and 16 now, highway at 65 was at least 17 new now low 19's.
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