hi guys i need some help, my mustang is giving me about 10-11 mpg in the city, i think the car get less then a V8, what should i do??

any ideas?

 

shift at 1500 rpms and dont floor it

 

unless u have an auto.. but i get more then that and mines a v8.. somethings wrong there i think..

 

mine's an MT and i'm avg between 25 and 27 depending on my driving style.. i'd say you have a problem

 

Check your Fuel Filter & O2 Censor first off.

That is not right... IF you drive aggresively in town/city driving (basically if you have a lead foot) you should be averaging at least 16-17mpg. Thats about what I averaged when I was driving with a lead foot. I've cured my lead foot disease by about 50% now :P

Get it checked out! If you still have Warranty take it in ASAP!

10-11mpg is not right--something is wrong.

On a side note I averaged 29mpg highway yesterday on a trip! Woohoo!! Going about 74mph 75% of the trip

 

there is deffinitely something wrong, i average about 22 with a lead foot.

 

How are coming up with those numbers? Hand calculation or the computer? If it's the computer, begin hand calculating. Also, have you changed tire/wheel size lately? How's your tire pressure? Any fuel leaks? Brakes dragging?

Many things can cause poor fuel mileage. Begin eliminating the obvious.

 

Did you re-calibrate your speedo after putting the 20's on?

 

Ah I didn't see that you had rims. That could also be part of the problem. And like Nuke said--if your not doing the Math yourself (if your using the car's computer) then start doing it yourself. Its Simple math:

Fill your car up when its on empty and see how many gallons it takes--record this
Reset your Trip OD to 0
Drive until your on Empty again and look at your Trip OD. (Ex: 300 miles)

Divide your 300 miles by the gallons it took. That will give you your MPG
I calculated yesterday that it will take me about $115 to drive 1000 miles. (which would get me from MN to my girlfriends house in NJ. Way cheaper than a plane ticket!!)

 

hi guys, well, i was doing it by the computer, but went to do it manually and still got no more than 12mpg, i did recalibrate anything after i put the 20's.

I guess that I need to change the fuel filter, since i bought the car, i had the filter to change it, but all my mechanics said they need a special tool to change it, does anyone of you know how or which one is needed?

Also I want to change the oil, the last time I change it i use 5w30, so I want to change it but i dont know if I should use different grade of oil.