I was wondering if anyone has found the best setting for top MPG. I haven't drove my truck enough since installing the chip and exhaust. I'm leaving Fri. for a 1600 mi round trip to Canada and with the price of fuel I want the most for my buck! Thanks in advance.

 

Level 1x anything would be the best. All levels add the same amount of timing which is the only source of mileage improvement over stock tuning. The higher levels just cause the the duration of the injection event to last longer. This longer duration is tacked on to the end of the initial pulse so in essence, the higher levels have microscopicly later average timing as you go higher in the level. The sub levels will not change mileage much due to the fact that it simply delays or expidites how soon the extra fueling becomes available based solely upon boost level as reported by the map sensor. At highway speeds, boost is readily available so the sublevels will not change much and truck will respond to the pedal entirely.

Note: Many notice that truck has better early throttle response when the map sensor is left unplugged. This is true due to the fact that when unplugged, the map sensor signal or lack thereof reports full boost so the Juice/ Comp/ EZ will fuel immediately.

 

I get the best mileage when on level 5. Unplugging the map sensor dosnt work with the juice, makes your truck run like crap.

 

Thanks for the replies. Maybe with this trip I'll try a tankfull at each setting.

 

Iver found that level 5 does the best on the road and 1 or 2 for stop aand go and i agree unplugging the map is a mistake.