42 mpg steady state, flat to slight downhill, "instant and steady" reading based on the "trip computer" current readout. Not to be confused with "average mpg" at the end of the day, I would think.
My Grand Cherokee V8 will often "instant and steady" read 25 mpg on the trip computer. Reality check: Average 13-14 on a GOOD day, 10 or 11 on a bad one when it's fill up time!
My new 427 "street friendly" build of my FE appears to be doing slightly better than my old 6 mpg. I think I'm in the 8's now.
