If you get a diesel make sure that you learn about the down side also. I did for preference and improved mileage but if you aren't driving it all the time takes a long time to recoup the increased acquisition/maintenace cost if its purely a fuel economy choice. Do you mind plugging in when cold, do you mind the increased noise (depends on vintage), diesel fuel availability, smell/smoke (again depends on vintage), fuel additives and increase maintenance possibility, etc
My V10s were quick turn keys only issue was trans which I could have had rebuilt by Woods or BTS and slight increase in towing fuel. My V10 would get 10 mpg towing trailer the 6.0l stock would get 12 mpg, tuned/deleted slighty more. The 6.4l stock wasn't as good (regen) but the 6.7l was slightly better than stock about equal to tuned/deleted but needed DPF fluid and had to be extra sensitive for fuel sources cause was worried about the WIF (water in fuel) issues that gave some owners grief.
My 6.0l would rattle when started cold to allow it to preheat (takes longer to warm up). My tuned/deleted one sounded like a jet when it would kick in high idle to warm up. The 6.4L was quieter and the 6.7. sounded almost like a gasser but there is a price delta for each jump in vintage/technology.
jmacpolo wrote:
Maybe I should be looking at a diesel. What kind of mileage will a diesel get doing 65 up a grade? What kind of mileage do they get while not towing? I an not pulling 14,000 lbs I am pulling a little under 7,000. Which diesel truck will get me up the hill at 65 and deliver the best mileage?
Thanks,
John