just got back from a little family road trip from cape cod down to VA and the NC coast. i was tweaking the tune in the wife's BEW golf along the way - 5spd 09a auto transmission. 40.7 and 40.7 mpg for the first couple tanks, not bad given the driving conditions. some heavy metropolitan traffic areas with a good amount of inching along in traffic jams, a decent amount of 80mph driving, good number of pit stops and relatively packed car with wife and 2 kids. 3rd tank netted 48.5mpg (725mi and low fuel light hadn't quite come on yet), and this next one would likely have maybe gotten better - 360mi and right at the 3/4 tank mark. decent amount of stops, keeping speeds a bit lower - under 65-75 for the most part. i have no doubt that if the car had a real transmission, we would have been getting 50-55mpg easy. but it is an encouraging sign, i must be doing something right with the tune
i don't believe i've ever come this close to 50mpg with this car under similar driving conditions.
of course the AC which has always worked, decided to quit once we got down to VA where it was quite hot. AC clutch not turning on, rad fans do come on. multimeter showed 11-12v at the 2pin ac clutch connector.. just had to live without it for the trip.