My special little Jeep Cherokee
I installed the Flashpaq Tuner and immediately went for the performance tuning, It was a blast however with the price of gas over $5 I decided to go for the economy mode for now. I have not run thru a complete tank yet so don't know what the mileage is yet. Also I have not been on the hiway yet.
You can feel the improvement this programmer brings to your vehicle firming up the transmission shift points and the noticeable difference in engine performance especially while starting from 0 mph. Stay off the gas pedal and the improvement in mpg, even modest, will come to save some dough at the pump.
1999 Jeep Grand Cherokee 4.7L V8 4WD - Improved
Although most reviews and feedback from "experts" in the field indicated I would improve MPG by only 0.5 - 1 mpg, I have experienced a 1.5 - 2 mpg improvement. I drive at an elevation of 5000-6000 ft and use 85 octane fuel. Coupled with the stock replacement K&N air filter (not the entire air intake kit), this programmer has taken my jeep from 15 mpg to an average of 18 mpg. I would recommend this programmer; it will pay for itself within a year or two.