I regularly get 24-26 mpg on the freeways at 75 mph.

I've been getting 1.4 mpg :ack2:

led foot with a hot motor huh.:rofl:
I get about 19 highway with your 'old' motor Dan.

Stay out of the boost and you will pickup about 5 mp.. never mind, what fun is that. :D

I am not certian but I pretty sure I do get any of that. My FD never saw a gas station it did not like.

went from Jacksonville to mobile AL(420mi) and used 18gallons running around 75, same trip at 85 used 20 gal. Not bad since I have a gas guzzler 02 tranny in it. 5th gear is at almost 4k at 85!!!!

We need to get Chuck to chime in here and let us know what to shoot for. ;)

I got just over 16 mostly city trying to troubleshoot boost control.

I was getting a little over 320 miles to the tank driving down to Seven Stock this year, average speed was 85-90 mph. AFRs was in the 17s with cruise control on. On the track it's below 10 mpg.

my rx-7's haven't burned a single gallon of gas this year.

I think i need to start driving them more.

16-17's AFR may run the engine fine but are not too friendly to your turbo or apex seals.

Run stoich and more timing to get better MPG, you'll have lower EGT's and your engine will thank you.

After my recent Steve Kan tune, I got 22.8 MPG on a highway drive from San Francisco to Irvine, CA for Sevenstock. That included a run up to 130 MPH and average speeds of 80-85 MPH. W/o any banzai runs, averaging 80 driving up to Thunderhill I got about 24 MPG iirc.

Won't hurt it at all under cruise

this weekend i went on a road trip and there were 380miles total with 70 in the city i averaged 18.5 mpg

23mpg for 430 miles driving with some bursts into triple digits.