I dd mine and get about 280-300 before I get gas when I fill up with usually about 11-12 gallons. My personal best was couple months after i got it, 363 miles and it took 12.6 gallons for and average of 28.8 mpg

 

I got 29.1 mpg on a 262 mile trip today. Best yet. I didn't actually try to get good mileage I was just surprised at the pump. Yes I don't sweat a 262mile trip on one tank so I didn't look at the gas gauge. I'll list the things that helped and the things that weren't optimal.

helped mpg:
coilovers (no idea why, maybe lower?)
CBRE ceramic bearings with low drag seals
lighter dba rotors
stock wheels and stock size tires
motul 5w40 (the best gas mileage of any oil I've tried so far, including all amsoil)
TUNE!

things that didn't help:
old oil
no working bcs (my mileage is worse on wastegate pressure )
lots of traffic
a/c on half the trip
wasn't actually trying for mpg today


I think the bearings probably added 2mpg over what this trip should've been. I will post a review about the bearings later though.