Before I chipped the piston I was getting ~18 city and ~33 highway driving on a untuned 3.4 setup. After the chipped I'm getting like ~14 city and 24 highway on a tuned 3.6 setup.
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After changing the spark plugs and the upstream O2 sensor I'm back to an avg mpg of 18. My wife travels about 8-10 miles one way with about 50/50 city/hwy miles. The other weekend we took a trip up to Columbus from N KY and we averaged about 26.
CAI hurts gas mileage?????
Usually it does because people drive it harder so that they can hear their engine more. Otherwise, it helps.
When I was NA (although I had the GT1 cam plus much more) I hard:
28mpg highway
Never checked city or combined.
Now on the CSC setup:
17 city (squealing the tires as much as possible and very hard driving)
25 highway (@75ish mph)
My 00 GT got like 18mpg every time I checked it mostly all city but even with some hwy. My 98 gtp on the other hand averages 30mpg at 75 and city varies a LOT on how I drive it but if I try I can usually keep 24+ strictly city
I had no idea that the NA GP's get that kind of mileage, looks like most are at around 18 mpg....and I get and average of 19.7 in the city and 30 hwy with me romping on it at least 25% of the time. What gives? I would have thought at least 22-24 city on the NA's
I usually see 21-22MPG city in my stock 06 N\A.
imeant 30-32 because i have seen my mpg in that range, it depends on if there are hills to coast or not. i went to buffalo recently and had it at 32.1 when i got off the expressway. i usually drive like a granny lol i coast whenever possible
Last edited by sonyz92; 01-10-2011 at 02:50 AM.
2002 GT stock
During the winter months im getting about 16 mpg city and about 21 mpg 40% city / 60% highway. During the summer i usually get about 18 or 19 mpg for city driving.
i Average about 18MPG on the GTP and the GT comes in at abut 17MPG
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