Quote:
Originally Posted by John Rambo
Hey, new here. Getting an 08 or 09 F250 Lariat. Will have a 5" lift with 35's or 37's on 20's. Will the Spartan or any other tuner still improve the mileage if I don't delete the pf? I'm guessing it would a little but is it still cost effective? |
Probably not... because you'll plug up your DPF much more quickly than the regular service interval.
