07 LBZ

[thime]

I am new to this forum, just ordered the U7186 and I have read a few places that the "Economy" setting may not give me the "Best" mpgs. I do mostly city driving with an occasional trip with 32ft fifth wheel RV. I'm looking for the best MPG's for both applications. Should I go by the written recomondation or has anyone found anything different?

2007 Classic GMC Sierra LBZ
Predator U7186
Version ??? (its in the mail)

[vin29]

I have an 06 LBZ. My mileage in town was about 14mpg. On the highway it was about 18mpg. After I purchased my predator and installed the 65hp tune I added almost 2 mpg to both city and highway mpg. Since then I have been running the 85hp tune. The weather has warmed up so I'm not able to make a accurate assessment as to which tune gives better mpg. Right now with the 85hp tune my city mpg is right at 18mpg and my highway mpg is almost 21.

[rydnhi4x4]

My suggestion is try them all. Every truck is so different. Plus it depends on what other mods you have done (blocker plate, intake, exhaust). I personally run the 120 tune all the time unless I tow heavy weight then I drop it down to the 65 or 85 tunes.