| 08 Duramax Fuel Mileage? PPE Programmer?
Hey guys what are some numbers you guys are seeing for fuel mileage. We have a 08 Dodge Mega Cab 6.7l thats getting 17.1mpg, a 2008 Ford F250 6.4l that I'm driving thats getting 15.9mpg. We sold our 05 Duramax that was getting 20-21 consistently. Im looking at a 08 GMC Crewcab 2500 4x4. I have seen that alot of guys have been running a PPE programmer. Are they helping the fuel mileage much? If the GMC will run 18-20 the ford is gone lol. Thanks in advance |