FORD 150 VS. CHEVY SILVERADO

[Jeff H]

Anyone getting bad gas mileage with the 5.3 may want to look into the Diablsport Predator programmer. My 2001 Z71 stepside reg cab was getting 14.8 mpg when I first got it in March. I had an old Predator sitting around that was VIN locked that I used to monitor my 2000 SS Camaro and it worked to monitor the 5.3 as well. I could tell it was running really rich so I bought a new Predator for $275 shipped and installed their performance tune and tweaked the fueling, overtemp, shift speed and pressure and now I'm getting around 17 mpg with better performance as well. The GM trucks with the 5.3 and automatic are set up to pull timing between shifts(torque management) and that also hurts the economy. Oh yeah, I'm running bigger tires (295/75/16) vs the stock 265/75/16 and it's slightly lifted.