2004 GTP Bad Gas Mileage

[Burtnette]

Originally Posted by je2345

i drive a 99 GT and it has about 95,000 mi on it, and i only get about 13-15 mpg. It sux..i reset my odometer every time i fill up and my last reading was 225 miles to a full tank of gas. That is Garbage, and my tires are farely new Pirelli's with Nitrogen in em!! I take good care of it and give it what it needs...full synthetic Mobile1 oil changes every 5 months or so and just got the Tranny rebuilt! New Ceramic Brakes and everything!!!! I also use Fuel injection cleaner prolly 3 times every 2 months here and there. FU** DOMESTIC CARS...cant wait til my wife buys her 08 Honda CRV, so we can drive that and save me money on gas!! if ne1 has any ideas on how to solve my terrible gas problem, then let me know please!

Ever since winter/cold temps came I've been seeing a lot a bad gas milage threads. I'm HOPING that that's the cause, winter & cold temps because 12 mpg just isn't cutting it for me haha.

[Jessica85]

Hey i had a terrible problem with gas, with my 99 gtp i mean i was gettin 9-11 mpg...TERRIBLE..and that was with new o2 sensors, fuel pump/filter/MAF/spark plugs/wires/ basically new everything as my car was a project car...now what was funny was i got my entire exhaust checked and got the resonator fixed, but after much asking and reading around AF, it was suggested to replace my cat. converter..now when i got it tested at Cole muffler they told me there was nothing wrong with it....but i could NOT figure out why my gas was so terrible, so i said F it and spent $260 and got my cat. converter fixed....from the time i drove my car out the shop until now, my car is getting 18-27 mpg...so i dont kno if thats ur problem but then again i didnt think it was mine either!!!...and btw i live in buffalo, cold and snowy, so i assume my mpg will be even higher when it warms up