DPF and Spartan - Diesel Forum

John Rambo · 11-30-2008, 11:58 PM

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?

mick1955 · 12-01-2008, 01:04 AM

I don't think you would see any noticeable improvement. Maybe a little. You need to visit the their forum. You may find someone there that is running tunes with the DPF in place.

timid1 · 12-01-2008, 09:07 AM

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.