I've owned 2 compasses, an 08 FDI Manual 2.4L 4x4 and currently an 11 FDI Auto 2.4L 4x4. For me the key to the most MPGs on the highway is keep the RPMs around 2,000(thats about 63 Mph in the 2011). I average 25-27MPGs during the summer with the 2011 and the 2008 got me 28-29 MPGs in the summer.. In the winter, i get about 22-23MPGs (or temperatures under 50F) with the 2011. You can do some crazy hyper-milling to get those numbers up BUT sometimes it isnt worth the headache.
18 Redline Pearl w/Two–Tone Paint Compass Latitude 2.4L, 4x4, Auto Mods/Addons:
Eonon GA2168K Android 10.1" Screen Double Din Car Multimedia Center
11 Mineral Gray Metallic Compass Sport 2.4L, 4x4, Auto
08 Red Compass Sport 2.4L, 4x4, Manual