ok sorry if this has been posted be i did try a search and didn't find what i wanted to know.

ok i get 23.5 mpg out of my 2000 gt 5spd. (i don't baby my car)

now i work with two women that have v6 auto(i know a auto will get worse milage) who both get around 22. one drives just as many hwy miles as me.

and a freind of mine has my cars younger sister 2004 black gt 5spd he gets 19mpg

i read about people getting any where form 12 up whats the deal are these cars that inconsistiant.

 

my 99 cobra gets 24.5 max. thats all on highway going around 75 trying to get the best mileage i could ..with 3.73s ..... i went 330 miles and put 13.4 gals in ...thats 24.6 mpg...i got my vaction trip log out.. after that i got 22.5,,21.6,,19.7,,22.3,,22.9,,,oops back home...that was 1867 mile trip.to the smokies.

 

12 seems way ridiculous...they must floor it like everywhere. most people ive heard get around 20ish...even with gears lots of people can get close to that mark. they seem relatively consistent. as for me...i get about 21 on city driving and almost 24 on most highway driving. these marks seem to be about the average. i have stock gears and stock everything else except for no mufflers (unbolted for exhaust sound until i have money for a catback-h pipe).

in the 4.6 mustang forum section there is a whole sticky about gas mileage. a ton of members entered around what they get. i found that useful. but these cars really arent that over the place. they all get on average between 18 and 22 mpg id say.

also...the v6 and v8 is not a big difference...i guess cuz theres not much of a difference between the displacement of the two. i had a v6 automatic before...now i have a 5 speed v8. im getting about the same mileage now...maybe even just a little bit better. 3.8L and 4.6L...not that much of a difference.


also...im sick right now and kinda hopped up on nyquil...so sorry if this post was kinda all over the place or rambled for a lot lol. hope some/any of it helped. check out that sticky.

 

driving styles is the most of it

 

i get better gas mileage than my wifes 99 v-6 gets on the highway ..no kidding..19.5 going to houston maybe converts are heavy gas guzzlers.with no muscle..[&:]

 

dude i pretty much drive like my gas peddle is a on/off switch. It is nothing for my car to see 6k rpm's. i would bet i would get better milage if i would take it easier on the car but i just can't seem to do that.

 

driving that way i get 160 miles to a fill up..being about 13 gals..=12.3mpg