Reviewed By Scott W (Laura, IL) Reviewed for a 1999 Chevy C/K 1500 —5/2/2012 8:53 AM
I have a 99 Chevy 1500 4x4 4.8L V8 with a 3in. lift I was getting just barley 9 MPG with this programer and with a differnet exhaust I am now getting 14 to 15 MPG.
Reviewed By Kenneth W (SAN ANTONIO, TX) Reviewed for a 2009 Ford F-250 —5/12/2015 6:09 AM
I've noticed an increase in mpg of about 2-3% in the Mileage XS Saver programming with my truck which translates to about 20 miles per tank more than the stock program. I will say that the 87 Octane program has noticeable changes over the stock program. My truck has the 5.4L with the 3.73 rear end. I am running a K&N cold-air intake with an Airaid PowerAid throttle body spacer. In the Performance program I have trouble keeping my foot out of the accelerator because of the increases!