I have a strong running 87 sport but my gas mileage is hideous. Ive calculated it to around ten. Sometimes 12 if im lucky. I know the cars old so i dont expect to be getting the full 17 or so that im supposed to be getting but 10 just aint right. What could i do to remedy the problem. Hit me with your ideas. Thanks
-Josh

 

replace the fuel filter and see if that helps any.

 

most fd guys are gettign 8-12mpg...

 

last time i filled i got 17.2 mpg

 

I have to admit to a disclaimer that a LOT of it is highway at 70 to 80 mph, but I get 26-27 mpg when it's warm out...and that's ******* on it every now & then... make sure ya got a good o2 sensor and your ignition system is in good shape...

 

my N/A gets right around 12.5mpg

 

My NA gets around 12-13mpg w/ straight pipe and intake

do a oil change it helps alot

 

my N/A has a RB Header, Presilencer, Apex'i N1 catback, and cone filter. i still haven't changed my fuel filter though so hopefully that'll help the mileage.

 

You are probably running pig rich with that open exhaust, and pig rich = lots of gas wasted

 

Still on my first tank of gas.

 

I get a max of 16-17 usually. If i mob around a lot and redline a ton I'll get like 12, if I drive shifting at low rpms all the time and not driving fast I can get it up to 18/19 but that's hard

 

I'm at like 15mpg which isn't too bad considering how I drive the car and it hardly ever sees highway miles.

 

i know for a fact that i'm running incredibly rich, you can smell it when i'm at a light and also the car shoots fire on demand.

 

These are all very low #'s. My modded T2 averages 20 mpg. My old vert got 23 mpg. There is room for improvement in almost all you situations. Most mods on a N/A will increase gas milage. Same with a turbo under normal driving conditions.

Also keep in mind that if your tires are not the stock size your numbers will be completely off.

 

and this sucks even more with the gas prices, i put ten bucks of gas and it's only half a tank with 87 octane. I remember when 10 bucks was almost full.

 

Shifting before 4k rpms helps a LOT...

...but that's no fun.

 

i bet i could get about 18mpg if i could tune my fuel curve but i can't so i won't.

 

Thanks for the advice. Im planning to replace the fuel filter so ill see if that helps. I try to shift before 3 but, you're right, that is really hard. Theres nothing like open throttle in a 7. Im hoping i can get it at least 17 mpg. 20 would be nice. Gas around here is EXPENSIVE!

 

replace your o2 sensor! I went from about 8mpg to 20mpg's...but get the universal one! It was like 30$ cdn if I remember correctly

 

I paid $2.25 yesterday for 87 pulp. Get about 12 MPG on my Streeported 13B w/ 48 IDA...less when it starts screaming. **** it...its a rotary...you want gas milage buy a hybrid.

But we gotta do something about these prices...this is getting ****** stoopid.

 

Does the o2 sensor really make that much of a difference? 8mpg to 20mpg?! How come it has to be the universal one?

 

hey maybe you guys can help me out.. i have a 93 fd, when i bought it gas milage was real bad, plus she only drinks 93octane so i spend about 50 bucks a week and i BARELY drive it, i mean like maybe like a day or two or sometimes 3 a week and i only drive it to a friends house ... anyways sice a few months ago ive noticed gas milage has gotten noticeably worse if thats even possible.. my car is friggin stock and she drinks like a 500 hp street car.... any suggestions? is this something that happens when you got low compresion?

 

word

 

you guys dont know how good you got it, 10 bucks for my fd is about a quarter tank of 93 octane and it dont last for shat

 

any elaboration on actual difference of the o2 sensor? if its an 8-->20 jump, it pays for itself in less than two weeks. But i thought o2 sensors were only used on closed loop (extended periods of ~ speed)