Review on Range Technology Active Management Disabler by Gary Stringfield

Worth it! I get nothing for this review. Yes, the mileage is reduced, but you save so much elsewhere that you no longer burn oil. The movement is smoother and the car feels responsive. The biggest improvement was the gearbox: It's gotten cooler and doesn't think any further. In addition, 4x4 makes less noise. Overall the car feels safer. Use after the dealer warranty has expired! Use may void coverage. Don't leave it plugged in if not in use for several days, it's not needed for long-distance rides (no hills). Cons: I DON'T LIKE THE LIGHT! not required! I'm really sure they can make this device smaller and with better materials for longer life.