FI and MPG
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From: Texas, Arizona,Cayman Island
If you dont smell gas you are good....How old are your plugs? After I started changing mine often....it got a little better.
You sure it isn't just the season? Colder air, winter gas, etc. Assuming that this just started fairly recently.
interesting....sounds really oldschool that it goes beyond hype lol. can these substances damage fuel system components? http://www.caranddriver.com/reviews/...rs+page-3.html
). right after a tune, it was getting about 20mpg on average and declined after a few thousand miles.
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From: Texas, Arizona,Cayman Island
Gas fume is strong as hell.. but the A/F is in the correct range (15ish@ idle and 11ish@WOT). Everything's new.
nah... I actually noticed this on the first build (i hate saying that ). right after a tune, it was getting about 20mpg on average and declined after a few thousand miles.
nah... I actually noticed this on the first build (i hate saying that
). right after a tune, it was getting about 20mpg on average and declined after a few thousand miles.
make sure those plugs are good !!
I run high 15s to low 16s cruise and idle and cruising 75-80 on the highway I get 28-29mpg. Under boost and high 10s A/F I get under 10mpg. 
Leaning out the cruise/idle does fantastic things for gas mileage as long as you don't lean it out too much...then it will stumble all over itself.
Leaning out the cruise/idle does fantastic things for gas mileage as long as you don't lean it out too much...then it will stumble all over itself.
About the same for me with no boost, I can't even think of what it is when I am boosting. I just know I fill up about three times a week. Lol at the gf comment, my wife hates boost.
How are you guys calculating your MPG? I don't think the MPG on the factory nav is that accurate. I means I am S/C and it says 19-20 on the street, and when crusing on the highway in 6th gear, it says 35-45. I know that can't be right...
bigger injectors wacks out your MPG gauge.. i calculate mine by miles traveled, divided by the gallon filled.
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From: Chicago
mine is miles driven/gallons used.
The mpg gauge on the g's nav screen is just a vacuum gauge essentially that does a small calculation....so when you go into boost it goes off the chart highest mpg you can get lol....I'll get a vid one day. Its funny too watch..oh 100% throttle is 40+MPG LOL
The mpg gauge on the g's nav screen is just a vacuum gauge essentially that does a small calculation....so when you go into boost it goes off the chart highest mpg you can get lol....I'll get a vid one day. Its funny too watch..oh 100% throttle is 40+MPG LOL
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From: under the hood
if nothing has changed such as fuel,tune,habits,you should leak down the motor and start looking for the cause to your loss in efficiency.(one tire low on air is enough to give your symptoms).parasitic loss in a failing tranny or diff can also contibute.if your state switchs to winter blend fuel that is enough as well.you should find what has changed,before it finds you.
All highway driving I get around 25-26mpg, in the city I get ~17mpg. It's expected 
...and FWIW my g/f LOVES boost, but it's still funny to watch her scramble for an "oh shít handle" when I hit boost
...and FWIW my g/f LOVES boost, but it's still funny to watch her scramble for an "oh shít handle" when I hit boost
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