[mustangv600]

Ok my car is a 2000 v6 mustang and its been getting about 170miles on a full tank of gas i Think something is wrong. I have a CAI and I just cleaned and re-oiled it but that hasn't made much of a difference. When I got the car a year ago I could get maybe 250miles out of a full tank now i'm lucky to get 160 and with the economy the way it is filling up hurts me pretty bad even though its a v6 but to add to the fact that I have bills and am in college don't help. I had the spark plugs checked around december and from what I was told they were platinum and were still in excellent condition I have driven about 10k miles since then. I don't think the O2 sensor is bad cause it passed emissions 2months ago but what do I know. Is a fuel leak more likely than something mechanically with the engine? well there is this leak that forms near the exhaust pipe right around where the gas line goes into the tank I don't know if its water but i dont think so cause the pipe doesnt have a hole in it and was just checked by an exhaust shop when I had my super 44's but on two months ago. Someone please help it's really cutting my spending money and I have to drive because work is 7+ miles away as is college and my friends and I can't move to a diff location. thanks.

[2002 BLK GT]

First do the simple things like checking your tires pressure. are those stats from freeway/city or just city? I used to get 15mpg but considering my extra weight of the wheels I think is okay, then I had my flanged cracked plus driving it till 4k rpms dropped to 10mpg, Next fill up It was fixed, putted some air in the rear tires then 12mpg now I will drive slower and will see. lol ( and yes I fill it till more than 15 gallons close to 15.700, same pump same route) so my stats are correct.

Raise the car if you smell fuel then it could be, change the fuel filter while there... do you smell fuel when driving? bad idle or something like that.? and

Welcome to modded mustangs.....

[bloodusmc]

get your fuel injectors checked out, also your fuel filter.

I use to get 14 mpg I asked my mechanic to clean the fuel injectors and change the fuel filter and now I get 17 MPG.

[winnie51189]

holy hell, I got almost 30 on the highway and about 25 in town but I do drive pretty conservatively, and the wheels are stock 17's but your 6'er should definitely be getting better gas mileage. Btw I haven't driven the mustang in a while to know what I get now, b/c the clutch is bad.

[mustangv600]

Originally Posted by Big Daddys Stang First do the simple things like checking your tires pressure. are those stats from freeway/city or just city? I used to get 15mpg but considering my extra weight of the wheels I think is okay, then I had my flanged cracked plus driving it till 4k rpms dropped to 10mpg, Next fill up It was fixed, putted some air in the rear tires then 12mpg now I will drive slower and will see. lol ( and yes I fill it till more than 15 gallons close to 15.700, same pump same route) so my stats are correct. Raise the car if you smell fuel then it could be, change the fuel filter while there... do you smell fuel when driving? bad idle or something like that.? and Welcome to modded mustangs.....

Thanks. No I don't smell fuel but I know my fuel is going somewhere because of bad gas mileage, I've even resorted to driving conservatively and not pushing the car if I don't have to. and I still seem to be using a lot of gas for highway trips. The car doesn't idle bad sometimes it jumps but like once every 6mins at idle and on very rare occasions I have a shaking problem but I think that only happens when gas gets to 1/8 of a tank so maybe the injectors need cleaning and fuel filter need to be changed also is it possible that there is a pin-hole leak in my fuel lines that is causing that liquid to form onto the outside of my exhaust pipe

[2002 BLK GT]

Originally Posted by mustangv600 Thanks. No I don't smell fuel but I know my fuel is going somewhere because of bad gas mileage, I've even resorted to driving conservatively and not pushing the car if I don't have to. and I still seem to be using a lot of gas for highway trips. The car doesn't idle bad sometimes it jumps but like once every 6mins at idle and on very rare occasions I have a shaking problem but I think that only happens when gas gets to 1/8 of a tank so maybe the injectors need cleaning and fuel filter need to be changed also is it possible that there is a pin-hole leak in my fuel lines that is causing that liquid to form onto the outside of my exhaust pipe

Then have a mechanic to check your lines... Do you have an auto or manual?

Originally Posted by bloodusmc get your fuel injectors checked out, also your fuel filter. I use to get 14 mpg I asked my mechanic to clean the fuel injectors and change the fuel filter and now I get 17 MPG.

Wow I will prolly do that cuz the gas is raising again in california don't know about other places but I use to fill it up with 28bucks, then 35, then 40... Auto or manual?

[orson250]

Originally Posted by bloodusmc get your fuel injectors checked out, also your fuel filter. I use to get 14 mpg I asked my mechanic to clean the fuel injectors and change the fuel filter and now I get 17 MPG.

+1 i changed out my fuel injectors, and in the process, found out that they had a little of a leak where it connects to the fuel rail (think it had to do with the o-ring mostly).

[mustangv600]

Originally Posted by Big Daddys Stang Then have a mechanic to check your lines... Do you have an auto or manual? Wow I will prolly do that cuz the gas is raising again in california don't know about other places but I use to fill it up with 28bucks, then 35, then 40... Auto or manual?

It's an Auto and when this just seems to be getting worse with the mileage it hurts even more as gas seems to be getting more expensive again

[Safi]

I get 9 MPG.....I fail at life

[2002 BLK GT]

Originally Posted by mustangv600 It's an Auto and when this just seems to be getting worse with the mileage it hurts even more as gas seems to be getting more expensive again

Manuals usually get better mpg if you shift correctly, yeah gas sucks right here its $3.00 per gallon.

[2002 BLK GT]

Originally Posted by commandersafi I get 9 MPG.....I fail at life

You need to start doing a tune up bro.... that really sucks.

[Safi]

Originally Posted by Big Daddys Stang You need to start doing a tune up bro.... that really sucks.

Oh its not the car...just the way i drive

[white03v6]

Originally Posted by commandersafi I get 9 MPG.....I fail at life

Originally Posted by commandersafi Oh its not the car...just the way i drive

that doesnt seem like failing at life to me

you have a mustang and you drive it the way it was meant to be driven

[02v6staang]

im in the same boat. ever since i got my longtubes...and i had an injection cleaning done too...and my fuel filter has been changed already. i dont know whats up with it..but i need to check my o2 sensors

[2002 BLK GT]

Originally Posted by commandersafi Oh its not the car...just the way i drive

Then you should be shifting till the redline cuz the only time I get 10 was when I had my cracked header and lower air on my rear tires and shifting till 4k rpms in every gear... I need a car with more tq...