that's good mileage on that TDI right there. though you kinda expect to have it.
also, dang you guys drive fast... i rarely go over 120 on highway normally, even when i was much younger. nowadays, i'm happy to sit at 110~115 in the right lane most of the time.
i think lexus likes to sit right at 100, 2000 rpm, minimal vibration and engine noise. and gets into 7L range.