gas milage question
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Junior Member
Joined: Nov 2005
Posts: 4
From: San Rafael, California
gas milage question
lately I have been getting about 10-12 miles to the gallon in my GT 5 speed and that is shifting between 2,500-3,000 RPM's, the check engine light is not coming on so I do not think that it is the o2 sensor, does anybody have any ideas what might be causing my bad gas milage? what is evrybody else getting for gas milage?
Senior Member
Joined: Dec 2004
Posts: 10,237
Have you done a fuel tune up? Id try running a top engine cleaner through the car, and a fuel treatment system. Seafoam is a product that will do both and I would pick up two bottles. One for your fuel, and the other through your PCV valve while the vehicle is running. Id see how that works and possibly try changing your fuel filter.
I get 19 doing fast highway driving
I get 14-15 in the city if I drive conservative (for the most part)
I get 19 doing fast highway driving
I get 14-15 in the city if I drive conservative (for the most part)
Senior Member
Joined: Dec 2004
Posts: 10,237
Originally Posted by stang00
i love how a gt only gets 3 more miles a gallon then me man i love driving like an *** all the time and shifting high
Blown 2V
Joined: Nov 2005
Posts: 2,297
From: kansas
funny thing is i cant shift at any point...im an auto but i still get some bad gas milage driving from school and back...normal is like 15 but in the summer when i was working where i drove on the highway i got around 20 to 21
Sooner #65
Joined: Dec 2004
Posts: 755
From: University of Oklahoma
With the mods I did before the gears, I could pull down 29+ mpg on the highway if I waxed my car (it DOES make a difference at highway speeds). In town I would get like 19-20. Now that I have 4.10's, it goes something like 21 mpg on the highway and 16 in the city. But the gears were worth it. 
Drive it like was meant to be I guess. BUT 12 is rediculous.
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Posts: n/a
Originally Posted by TClark22
funny thing is i cant shift at any point...im an auto but i still get some bad gas milage driving from school and back...normal is like 15 but in the summer when i was working where i drove on the highway i got around 20 to 21
If that dosn't help what you want to do is just be looking at your RPM meter, When your pressing the accelerator notice how much your RPM meter is rising, when you see it get to about 2,500-3,000 losen out the pedal so it dosn't go higher.
First gear i never let it pass 3,000 RPMs, and then the rest of them never pass 2,500 RPMs. Saves me a lot of gas then letting it go to 6,000 RPM
Jack Touched Me...I Cried
Joined: Aug 2005
Posts: 3,751
From: Tallahassee, FL/ Gaithersburg, MD
fuel economy isn't really worth pursuing...ur never guna have a high power fuel efficient car...lol sry but thats kinda like driving a truck and bitchin cuz you gotta spend 50 dollars a gallon thats the whole point...everyone know's that... probably another good reason for me not to get the crate motor till after college when i'm bankin consistantly...
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