Schiffy Posted May 30, 2013 Report Share Posted May 30, 2013 Ok, so obviously i didn't buy the Mustang for long drives cross country because it gets great gas mileage, BUT, i'm averaging 12.9mpg, which even it being old and SOME spirited driving, to me sounds ridiculous. plugs, air cleaner, maybe some sea foam, and a fuel filter. what am I missing? is there anything else that can attribute to my bad gas mileage that is slipping my mind? like i said, i do some spirited driving, but honestly, not that much. i drive it to work and back everyday. i take back roads which typically means no lights or traffic in the AM, and i'm only hitting the hwy for about 3 miles if that. i know mythbusters did a thing a long time ago about using more gas when you run the AC, they say thats false, i disagree, but either way. i hardly ever run my AC, typically just the vent, or the windows are down. i usually get off early enough in the afternoon that i don't hit traffic either, unless like today, i have duty, so i'll be going home right at the start of rush hour. do ya'll think that 200 miles on a tank of gas(which equates to 200miles/15.4GL tank= 12.9mpg) is right? i haven't done any tune up stuff, so that could bring the mpg up some, but wanted to see if ya'll caught something i wasn't. Link to comment Share on other sites More sharing options...
copmagnet Posted May 30, 2013 Report Share Posted May 30, 2013 any codes? pull DTC and check for rich codes or a failed o2. Link to comment Share on other sites More sharing options...
Schiffy Posted May 30, 2013 Author Report Share Posted May 30, 2013 any codes? pull DTC and check for rich codes or a failed o2.No codes... I'll replace the O2's when I so long tubes no matter what. Factory was 15/23, so in not super far off, but based on my driving, I'd think I'd be between those 2 numbers...Tapatalk made me do it! Link to comment Share on other sites More sharing options...
D3vst8r96gt Posted May 30, 2013 Report Share Posted May 30, 2013 Honestly ur probably using about 13 gals per tank .... getting it to take 15.4g takes patience at the fuel pump and ypy would have to literally push it into the gas station. Clean ur mass air flow sensor check ur tire pressure and the stuff u mentionedThe D3V Link to comment Share on other sites More sharing options...
D3vst8r96gt Posted May 30, 2013 Report Share Posted May 30, 2013 Ive gotten as low as 8 and as high as 27 .... mixed id get 18The D3V Link to comment Share on other sites More sharing options...
copmagnet Posted May 30, 2013 Report Share Posted May 30, 2013 my gt before and after pi swap was getting 22mpg.. Link to comment Share on other sites More sharing options...
wmfateam Posted May 30, 2013 Report Share Posted May 30, 2013 Fill your tank, drive it down to around a quarter, record mileage and divide the mileage by how many gallons go back in the tank. Do that two or three times. That is more accurate than running it to empty, which is bad for the fuel pump. Link to comment Share on other sites More sharing options...
01yellercobra Posted May 30, 2013 Report Share Posted May 30, 2013 How far is your commute? I know you said you don't deal with stop lights, but is there a lot of slowing down and speeding up for the road? In city driving I saw 12-13mpg. That was about a 10 mile commute that was all traffic lights. Link to comment Share on other sites More sharing options...
Blackmage Posted May 30, 2013 Report Share Posted May 30, 2013 When i was living in Chicago i would average 20 with my GT. that was stop light traffic all the way to work and school. The only time i EVER saw low teens was when it was snowing and i was drifting and rodding on it everywhere in the snow. Link to comment Share on other sites More sharing options...
Moderators Psychorugby Posted May 30, 2013 Moderators Report Share Posted May 30, 2013 I used to get 18-20 around town and near 30 on the highway with the stock 302. Link to comment Share on other sites More sharing options...
Schiffy Posted May 30, 2013 Author Report Share Posted May 30, 2013 How far is your commute? I know you said you don't deal with stop lights, but is there a lot of slowing down and speeding up for the road? In city driving I saw 12-13mpg. That was about a 10 mile commute that was all traffic lights.14 miles round trip. I do have to slow it down towards the end on my way INTO work, cause stupid people see a tunnel and feel the need to brake, even if the tube is empty. lol... I haven't run the car to empty. Just top it off and figure it in, so I probably am in the low to mid 13mpg range. I just feel like I should get more. My bolt on '95 GT was averaging 18mpg and that was red light to red light.Tapatalk made me do it! Link to comment Share on other sites More sharing options...
Det_Riot Posted May 30, 2013 Report Share Posted May 30, 2013 No idea what I get. Odometer doesnt work. Yolo. Link to comment Share on other sites More sharing options...
Blackmage Posted May 30, 2013 Report Share Posted May 30, 2013 I used to get 18-20 around town and near 30 on the highway with the stock 302.With my 95 GT i would average around 28 on the highway with the 2.73's lol Link to comment Share on other sites More sharing options...
PRPVinyl Posted May 30, 2013 Report Share Posted May 30, 2013 Damn Chris, I was getting that kind of Mileage in the F250. Get the gas mileage figured out and you can have some serious MOD money Link to comment Share on other sites More sharing options...
01yellercobra Posted May 30, 2013 Report Share Posted May 30, 2013 . do ya'll think that 200 miles on a tank of gas(which equates to 200miles/15.4GL tank= 12.9mpg) is right? i haven't done any tune up stuff, so that could bring the mpg up some, but wanted to see if ya'll caught something i wasn't.. Just top it off and figure it in, so I probably am in the low to mid 13mpg range. I just feel like I should get more. My bolt on '95 GT was averaging 18mpg and that was red light to red light.Tapatalk made me do it!So how are you figuring out your mileage? Are you figuring it at 15 gallons or are you actually going by the amount you put in the tank? Link to comment Share on other sites More sharing options...
copmagnet Posted May 30, 2013 Report Share Posted May 30, 2013 No idea what I get. Odometer doesnt work. Yolo.GPS keeps track of miles traveled. Link to comment Share on other sites More sharing options...
Schiffy Posted May 30, 2013 Author Report Share Posted May 30, 2013 So how are you figuring out your mileage? Are you figuring it at 15 gallons or are you actually going by the amount you put in the tank?Based on 15 gallons... I put 13.5 in last time and got 200 miles. So 14.8 I guess...Tapatalk made me do it! Link to comment Share on other sites More sharing options...
64bit_Tuning Posted May 30, 2013 Report Share Posted May 30, 2013 holy balls... my 347 was getting 17mpg with me driving like a typical mustang owning douchefag...and you calculate MPG based on what you use.You fill updrive XXX milesfill up againmiles / quantity to fill = mpgfwiw, my 12 second WRX gets 24mpg:taunt: Link to comment Share on other sites More sharing options...
Det_Riot Posted May 30, 2013 Report Share Posted May 30, 2013 I guess i'll have to check mine next time i fill ( which should be soon) Link to comment Share on other sites More sharing options...
Schiffy Posted May 30, 2013 Author Report Share Posted May 30, 2013 holy balls... my 347 was getting 17mpg with me driving like a typical mustang owning douchefag...and you calculate MPG based on what you use.You fill updrive XXX milesfill up againmiles / quantity to fill = mpgfwiw, my 12 second WRX gets 24mpg:taunt:Fuck your WRX!!! lol... I'm filling up tomorrow or Saturday, I'll do the math and figure it out again.Tapatalk made me do it! Link to comment Share on other sites More sharing options...
iRoush Posted May 30, 2013 Report Share Posted May 30, 2013 I fill up once a month with the miata. I fucking love this car lol Link to comment Share on other sites More sharing options...
copmagnet Posted May 31, 2013 Report Share Posted May 31, 2013 on a douche week, me driving everywhere pretty hard, then a night at the strip, my MPG is 20. om a normal week with me babying the car and granny shifting i average 23ish. Link to comment Share on other sites More sharing options...
PRPVinyl Posted May 31, 2013 Report Share Posted May 31, 2013 Hey Chris if it makes you feel any better when I beat the crap out of the Fiesta I get 27 MPG, and back and forth to work babying it I get about 31 MPG, 21 miles round trip to work, all surface streets on the way to work and 6 miles of interstate on the way homematt Link to comment Share on other sites More sharing options...
MMR Posted June 1, 2013 Report Share Posted June 1, 2013 Try to clean the MAF as well. Other than that you seem to have it covered.do you drive around with alot of stuff in your car? ..if so try to take it out, you'd be supprised how much it actually helps. Link to comment Share on other sites More sharing options...
copmagnet Posted June 1, 2013 Report Share Posted June 1, 2013 Try to clean the MAF as well. Other than that you seem to have it covered.do you drive around with alot of stuff in your car? ..if so try to take it out, you'd be supprised how much it actually helps.I drive around with two hoes in my trunk. and there staying.. Link to comment Share on other sites More sharing options...
MMR Posted June 1, 2013 Report Share Posted June 1, 2013 I put my hoes in da backseat for some backseat action!!!!1!!!1!!!!one!!!!1! Link to comment Share on other sites More sharing options...
Schiffy Posted June 1, 2013 Author Report Share Posted June 1, 2013 I drive around with two hoes in my trunk. and there staying..They're*Tapatalk made me do it! Link to comment Share on other sites More sharing options...
MMR Posted June 1, 2013 Report Share Posted June 1, 2013 they're*tapatalk made me do it! lol! Link to comment Share on other sites More sharing options...
copmagnet Posted June 1, 2013 Report Share Posted June 1, 2013 grammer nazi's. Link to comment Share on other sites More sharing options...
PRPVinyl Posted June 1, 2013 Report Share Posted June 1, 2013 Just remember when you take English comp for college classes contractions are a no-no and most instructors will take points off for them Link to comment Share on other sites More sharing options...
copmagnet Posted June 1, 2013 Report Share Posted June 1, 2013 I have the MCI "grammer for marines" Link to comment Share on other sites More sharing options...
Det_Riot Posted June 3, 2013 Report Share Posted June 3, 2013 Just calculated. Getting 18.2mpg mix of highway/city with spirited driving and a handful of wot pulls Link to comment Share on other sites More sharing options...
1997cobra Posted June 3, 2013 Report Share Posted June 3, 2013 I always averaged around 19 in my stock cobra, wot pull at least once a day. Link to comment Share on other sites More sharing options...
