I am preparing for my first trip and I had a few questions. I plan on topping off the tank in the morning and departing after 6pm. Thanks in advance. The trip is about 300 miles from Raleigh up 95N to 64W with a climb over the Blue Ridge mountains in NW Va into the Shenandoah Valley up 81N. My previous car was a Kia Forte 5 door and with the cruise control I got about 32mpg at 70Mph. Of course that speed dropped a tad going through Richmond but I was able to maintain that over the mountains and into the valley. In reading the various posts on mileage, the use of the cruise control is hardly mentioned on long trips and when it is mentioned it seems to be with disdain. I used it in the Kia to get the higher MPG, relieve fatigue and keep from getting a ticket. VA has some of the stiffest traffic laws in the east. My question is, if I use it and maintain 65 or 70 where legal, can i assume my MPG will stay at or near 50? I'm not a mileage fanatic (meant in a good way of course) and would be happy with 48-50 on the trip. Second question involves the B mode on the stick and the mountains. I have read numerous articles about it including the manual and frankly I'm more confused now that I have read them. The salesman said it was encouraged to use when in the mountains? I go up about 10 miles worth and come down about 3 miles worth...do I use it or not and what does it do and what do I gain or loose by using it? Lastly, is it the consensus that a faster acceleration from a stop to cruising speed and then the glide burns less gas than a slower acceleration and then glide?