just what the overhead says, i know its not the most accurate but when it drops my actual mileage has to go with it too, never put the calculator to it

 

but you do like your php? im looking at getting the on the fly dial, those are good right???

 

yeah i love it, the performance it gives is great, i'm just on the highway/interstate ALOT and am wanting some better mileage, but i do have yet to go on a long trip to really see, and the fly dial is good yes

 

ok good cause im bout ta go get a diff pcm im getn one with a diff code then im ordering mine, thanks for the tips!!!

 

no problem and my mileage has gotten a lot better now, i am at about half tank and have gone almost 180 miles

 

wow thats it? i run an average of 205 miles to half a tank with my programer on performance!!!! how big of a tank you got?

 

i can run 200+ everytime on a half a tank

 

We have always had good luck with the TS 6pos Chips.

 

The overhead is wrong if you have any kind of chip. You are not getting 21 mpg its called the lie-o-meter for a reason. Do you have a shortbed? Mine has the 38 gallon tank I can usually get between 250-300 to a half if I do interstate driving and dont play nascar. At least thats what I remember its been awhile since I didnt play nascar

 

in town i get 200-230 to half a tank and thats me playing nascar, and id say mines the same size, i dont have a lie-o-meter!!!