Hey all! Hoping you can all help me improve my mpg on the Volvo. I commute 40 mi each way to/from work -> Long Island Expressway in NY. I usually drive about 65-67mph going to work (since I have reach there in a particular time frame), try not to brake too hard, use cruise control, and stick to the middle lane. Driving back home, I do about 62-65 mph with the same rules. When I first started following <70, I got 27mph which is pretty decent. But ever since the first 2-3 fuel ups, I've been doing worse than before - prob hitting the low 20s (if at all). There is nothing heavy in the car, no roof rack, single driver (thin, 180lbs), and not a (particularly) hard braker. Any help?