How many miles do you get on a full tank of gas in your E30 M3???

Last few tanks, 300-325 miles, ecu reads 20-30 miles to empty. Bone stock 89 E30 M3 with 116K miles. Average speed 33-45mpg (lots of highway)

Really? Man i'm getting horrible readings well i haven't drivin on highway this past fill up. But about 185 just city driving, but a few spirited driving here and there.

Yeah, thats about right. I commute 11 miles a day city driving and get about 17 when shifting between 2500 and 3000. Any more aggressive than that and I am in the 15's for mpg. Typically I am in 4th gear by 30 MPH.

Will

okay, i wish gas wasn't so expensive but gotta love the feel of passing other new m3s, lol