duyx817

i know this topic has been beating to death and all. but i have a few questions

okay so my car gets about 15 mpg. i drive city alot so i know that makes a difference.

i also got a axle back exhaust with cai. and i carry at least 250 pounds worth of car audio.

should my mileage really be that low?

tnobori1

Not unless you're foot is in it all the time! Even then... Something seems wrong with that picture!

Epiphany

I average 11.5l/100km(20.5mpg) with "spirited" city driving.

ML03CLS

Even in stop and go traffic with a heavy foot I average between 23-25 mpg..

I keep a log that goes back 3+ years, the curse of being an engineer.

aznboi2424

iTrader: (10)

thats really low. Maybe dump some seafoam in the gas tank and clean out your air filter.

Also helps not to hit VTEC all the time.

duyx817

and also im VERY soft with the pedal. i dont vtec if anything i dont past 4k rpm alot either

aznboi2424

iTrader: (10)

hows your tire pressure?

duyx817

new tires, so they are all 35

tnobori1

I like the Seafoam and air filter idea. How many miles are on the car? Have you done regular maintenance? If you're over 100k, have you done the plugs?

Idk, maybe you have a factory freak...

Accord316

Im around 20/21 mpg...not bad considering the fact g35's are 17/18 mpg city driving

MIKE8898

Im running right around 20MPG in normal non highway conditions. I do tend to have a heavy foot though lol

Epiphany

Looks to be a pretty normal range.

TheWeez

I get 26-28mpg mixed with plenty of spirited driving. Up to 37mpg on the highway when I road trips.

Jacobpockros

iTrader: (1)

I average around 15 as well

Rapture

Yeah I average about 24 MPG when I do 60% city, 40% highway.

MIKE8898

Im on pretty bad tires and i havnt done any Seafoam or fuel injector cleaner or anything so im hoping that when all this is taken care of i can at least be up around 25MPG

duyx817

i have done seafoam before. maybe ill clean and check the filter. what about plugs? should i replace those, i never replaced it

clpassenubye

iTrader: (20)

What octane gas are you using? Are you using premium?

Aman

Two hundred and fifty pounds of audio? What do you have back there?

But yeah, it still shouldn't be that low. What's the mileage?

Double check tire pressures, check engine oil and tranny fluid, valve clearance, spark plugs and seals, etc. etc.

CL-S progression 01

iTrader: (2)

29-30mpg is my average. and i do a fair share of city driving also.

StreetKA

iTrader: (8)

17-18 avg but easly can drop to 15... when easy on gas 20-22 stop&go highway driving 25-28mpg

MIKE8898

You also have to remember that people with CAI's and headers are going to get better mileage.

Rapture

IMO weight reduction would help with gas mileage better than a CAI would.

But then again I never really paid attention to my MPG before I put in my CAI.

MIKE8898

True but there's not much weight reduction to be had unless you are willing to ride around without seats or taking the spare out. Sure there's things like removing the lining in the trunk and the bottom side of the hood but in reality how much is that gonna help?

Rapture

JDM ashtray takes off 50 pounds.

aznboi2424

iTrader: (10)

I get about 19 all city and near 30 all highway.

Depends the type of gas you use too. I get more MPGs using chevron but no matter what station I go to, its always top teir and 91 octane.

Rapture

Well what you can do if you feel you're getting too low MPG is try going to a station that uses no ethanol. I've read a few people got an extra 3-4 MPG just from filling up with the good stuff.

http://pure-gas.org/index.jsp?

StreetKA

iTrader: (8)

nothing in NJ

duyx817

i got 2 audioque 12's hdc3 with a box that is like about 75 pounds

civicdrivr

iTrader: (9)

Or make sure the station you do go to has no more then 10%. Theres a few in my area that have 15%

OP - Your numbers are clearly not right. I've been averaging 26mpg since day one.

Whats your mileage?

Rapture

Yeah if my local stations start using 15% I'm gonna start using ethanol-free gas 100% of the time.

duyx817

i get about 235 miles per tank. i use about 16 gals before refilling
14.6 mpg?

atm im just going to try to sell my car and look into a rsx-s or a s2k

civicdrivr

iTrader: (9)

I meant the miles on the car.

Even so, 235miles on 16 gallons is crazy. I usually fill up at ~400miles and thats only 14.5-15 gallons.

duyx817

i got about 232xxx miles i fill up about twice in 2 and a half weeks.

civicdrivr

iTrader: (9)

Check spark plugs, air filter, all fluids. Even with 250lbs of equipment you should still be around 21mpg.

Whats your daily commute on average? A short drive that doesn't let the car fully warm up is not good for gas mileage.

Jacobpockros

iTrader: (1)

230,000+ miles means time for seafoam

StreetKA

iTrader: (8)

^what a bs you just said read b4 you post. They do not recommend seafoam to cars with more that 150k miles.


Anyway i got average 250-260 miles out of my tank to gas light to be on. I drive stop n go and like 20 miles hwy daily to work.

duyx817

i autostart my car for 5 mins every cold morning, and i drive about 25 miles per day, to school then to lunch then to school then home then back to school then home

Jacobpockros

iTrader: (1)

You probably drive the car pretty hard then. I drove my cars hard when i was 17....

and i still do

civicdrivr

iTrader: (9)

So on average thats 6 start ups. Thats about 4 miles a start up, which could be the reason you aren't getting good mileage. Have you ever gone on a road trip with the car and if so, what was the gas mileage?

Also, letting the car warm up for 5 mins is wasting gas. Unless its really cold (i.e.- temps I highly doubt it reaches in TX), 30 seconds is all you need. Just don't rev it past 3k until its completely warmed up.

I just filled up today after 424.5miles and it was 15.7gallons. Thats about 27mpg. 60% highway, but there were quite a few high rpm pulls getting on the highway and alot of high rpm 1st and 2nd gear action in the city.