IBW,
I have almost 20K miles on my '10 Golf. I've never
had to fill up under 500 miles. I live up off of 495 and my daily commute is 35 miles each way to Andover. I normally drive 75-80, keeping it closer to 75 these days. Since late spring I've been usually getting 46-49 mpg on the daily commute, depending on traffic. This morning I kept it around 80, spending a little more time above that than normal, and I still managed 46.4 mpg. About 6 of those miles are on back roads, the rest are highway, but with an interchange in there, as well (and I don't hesitate to get up to speed
).
I previously had an '02 Beetle. When living in NH with a 45 mile commute I often achieved 45 mpg (I used to drive a little faster and more aggressively...80-90), but rarely better. (I stayed up in NH the other day, right near where I used to live, and I managed 51.4 mpg on the commute down to work, keeping it between 75 and 80, mostly.) When I moved down to MA and got an RC3 tune I saw my mpg go down to around 41...As I said, I have slowed it down a little, but I'm by no means a slow poke, and am now averaging much better (full tanks around 45 mpg right now) on the new golf. I had a few bad fillups in the winter (~37 mpg), but that was during the snow storms and cold spells...and still with barely 10K miles on the odometer.
At the end of the day, I don't think the mileage on the new cars is that much worse, especially compared to an ALH with an RC3 tune.
I'll try to post my fuelly sig:
If you happen to take a look at the fuelly stats you'll notice the recent tank at 41.something...that included Boston city driving, including about 40 minutes looking for parking in the north end, and driving at a speed far exceeding my normal on the way in.