I've got a number of questions upon delivery of our T6 this past week. I'll put them each as separate topics to keep things clean.<p>So far the car is awesome, I can't believe how much nicer it is than the '04.<p>Regarding fuel, the book says 87 octane is ok, and 91 octane will give better mileage and performance. Our dealer strongly recommended only using 87 octane. Our first 2 hr trip this past weekend with 87, combined city/highway, we got 21 mpg.....after reading many threads here, I was expecting the worse, like 12 or something, so this was a pleasant surprise!!!<p>Any comments on what you all recommend for octane?