Before anyone says use the search i tried a few times cant find what im looking for, what exactly is done in the tune that gives it better mileage, and does anyone actualy have some real life mileage stories?

 

Our 03 tahoe and 02 Z71 is getting 4 MPG increase with our tuning
There are a lot of tables to mess with for mileage increases that really work.It is a matter of messing with and learning

 

is that 4 on the highway or around town? think it will do long term damage or ruin my waranty, havent had anything with a waranty in quite sometime dont want to lose it lol

 

What table and what changes? This is a site for teaching and learning too ya know

 

please help. i think my tune despite the 2.5 tenth and 2 mph gain in the eighth has cost me 4 or 5 mpg on the highway driving for a mileage check? what's could be wrong and the converter keeps cycling lock-unlock at cruise in overdrive under light throttle?

 

No it will not hurt it,I do not care about my warranty to be honest.Never had many problems with my vehicles
those mileage increases are doin the same driving I always do
Combined city and alittle highway

 

wow, seems to be a change in thinking around here...

Charlie, have you figured out any tricks to improve mileage over the summer?

 

any other opinion?

 

it's going to have to do with your shift points and TCC lock-up speeds primarily....not that i got a handle on it at all