wayne613

I'm just curious.

Mine is in the crapper @ 16.3 (hand guesstimate when filling each time), but I rather expected it to be with a Race tune, CAI, and 4.10 gears. Wondering how super-craptacular mine is compared with others.

Nuke

FAIL

I know we're in the GT section, but...

Are you talking the 3.7L, 4.0L, 4.6L or the 5.0L? SC'd or NA? Per the on-board or hand calculated? City or highway? After how many months or years of data points?

wayne613

Any. S/C, N/A...doesn't matter..curious is all from the S197's V8 flavors. Verification circa 1969 with a slide-rule of an apollo craft's fuel usage I'm not lookin' fer. Just a ballpark for their own v8 S197, and perhaps a statement of the context if they feel like it in a response. Results with names will be viewable.

pdonket

16-18mpg for me on average with far more city driving than highway. 5.0L V8 Here

hawkeye18

19 city, 25 hwy. EPA estimates are 17 city, 27 hwy, so it would seem that I'm breaking even.

REDBOSS1

Both of mine are hand calculated. The city mpg was over the course of a year, I have a spread sheet on my home computer with my monthly mpg. The highway mpg is the only real highway time I have driven since I had the SC put on.

City - 14.4 mpg

Highway from Fort Walton Beach Florida to O'Fallon Illinois - 23.7 mpg

Franchi

10 to 11. I use fuelly.com as only over time, does true averages show.

Hack Job

Its the Bama 93 Race tune that caused my horrible mileage: <17. For some reason the gas pedals always on the floor now...

danzcool

15.3 overall (cars computer), mostly city driving.

j_marinelli

a hair over 20 with a 50/50 mix of city/highway (75+% spirted driving )