96 Accord 33-35
96 Civic- 35+
2006 Civic- 32-35

All with a pretty even mix of city and highway...

 

I just noticed. After having my timing bumped, I must be getting around 30!

 

ok I check my mileage today and since the spark plug changed. I now aver. about 24 mpg in town.

 

i drive about 500+ miles a week now living in laconia nh and augusta me, and with my 17s and noisy *** yokohama parada spec 2s i calculated a 34mpg max, and i put my winter tires on, just stock tires and drove to school, filled my tank... and my heart stopped, if my calculations are correct i am getting 44 mpg. its hard to believe.

 

i filled up today, and my quick calculations show about 28. cant wait to get these bolt-ons...umm....bolted....on.

 

would a header change the gas mileage?

 

I average about 31 mpg in my 6th gen ex, best i ever got was 36 mpg. Lowest ive seen was 26.

 

I get about 26 average, mainly because my 02 sensor is throwin with the new exhaust on it... gotta get a damn simulator. Where can I get one? Ive checked all 5 auto stores I have in my area.

 

I have a stock 91 civic hatchback with 123000
on the clock. I get around 35 mpg in town no matter how I drive
and over 40 on the highwayand that's with an automatic.
You have to stay on top of maintenance and I use castrol
syn-tec full synthetic oil. This alone will increase your gas
mileage. Your anti-polution devices probably need looking at.
these things are notorious for clogging up and waisting gas
assuming you don't have a mechanical problem.

 

Yes it will..it will most likely cause it to go down.

Stock 95 DX HB = 32mpg
SRI = 36mpg
catback + SRI = 38
Header +catback+SRI (tune up)= 36mpg

This is all highway driving 100 miles a day 80MPH in the AM and slow crawl home( 40MPH) in the PM