Ok so I went on my 250 mile drive and was in a hurry to get home early to surprise my g/f, so i was scootin along between 80-90 some times up to 95 for a few minutes. So when I finally arived in Houston (which was a zoo this past weekend) and filled up my car I got an amazing 25 mpg!!! :angry: so i'm thinking that no one else here gets such crappy mileage so I think it's a few things.
1) The first owner did a crappy ass job of breaking it in.
2) Must need new spark plugs and/or injectors.
3) Time to save for a brand new d16z6 that will get rebuilt to take some boost!
4) Get a newer auto trans, to poor and to big of trouble to do conversion.

So do yall have crappy mileage or is it just me?

 

i get that if im lucky. haha.

 

didn't you say you have snow chains? and this is with my si with no mods on 87 octane gas at sea level. oh well i don't pay for my gas :naughty:

 

I get that when I run 93 octane. My gas milege sucks when I do. I really need to run 93 due to the fact my compression ratio is 10:1 but when I run 89 octane, I can squeeze another 80-90 miles out of my tank.

 

maybe my car's other owners ran 93 or 89 octane and thats way i get bad freeway mileage? :dunno:

 

naaa because after a few tanks, your ECU will compensate and make all the necessary adjustments. If you're getting shitty milege after a few tanks of the same octane gas (whichever you think you should get better milege with) then something needs to be adjusted/tuned.

 

i run 93 octane always have.

 

its probably just because of the auto trans in there...manual > auto

 

Or maybe it's the fact that you were constantly pulling about 4000 rpms?

 

thats what i thought but people say they get 30+ no matter how hard they drive,
85mph=3,400
95mph=4,000