That seems a bit on the low side, perhaps there is something wrong? o2 sensor maybe?

::EDIT:: just checked it out, that's not bad gas mileage at all.

Welcome. I used to have a 91 STD hatch with a first gen JDM b16, which spun at 4400 @ 80 mph :eek: And I still got 37 mpg in the one highway trip I made, which included two 100mph onramp merges :p Theres a guy on HT who CLAIMS to hit 40 mpg in an h22 hatch, which is "running more rich than Oprah on a treadmill" :confused:

Good luck getting the most FE out of your Honda, but it looks like youve already been doing very well :thumbup:

I also have a B16, and have been getting an average of 35 mpg mixed! Usually keeping the rpm's over 3000

man.... i want to get over 45mpg from my d16z6 swap (without changing driving habits)... how did you do it?

i'm not really sure how. nothing special.

cruise60-65mph on 2 lane back roads
CX chassis
stock z6 ECU
short/warm air intake, OEM z6 header, no cat, stock CX exhaust

47.7mpg is possible. My car got 44mpg at 70mph.
The dx tranny is just right. I would want a taller 1st. My 1st is too short, I don't know how the ex and si guys are handling it.

that was my setup for a year but the best i could get back then was 36mpg. then again i was never going even 65..... i did notice a .5mpg drop after putting a cat on...

You have different cars, and you don't have a vtec engine like 90CivicStandard has.

A DX engine is built for Fuel Economy much more so that a d16z6 engine is.

i handle it all the way to 35mph daily. i dont know what youve driven in the past but civics do not have a short 1st gear.

For me it feels short. My altima's 1st gear went up to 44mph with it's misely 6100rpm redline.

The civic has 6800rpm redline and 39mph max for 1st. It's short.