Looking for fuel economy
I am not what would be considered a motor head by any stretch of imagination. I was looking for a programmer which was uncomplicated. Many descriptions and reviews led me to the Smarty Jr. I have programmed my 04.5, 5.9 at level 1. Had little use, since truck is used primarily as RV tow. Most likely,since I am not that mechanical, I have difficulty understanding the POD, along with timing adjustments. So as time passes I hope the factory defaults will suit my needs.