2000 VW Jetta TDI project. This is my daily driver. I do 128 miles a day. 90% of that is highway and vary from 60mph-70mph.
Currently the car has a VNT17, KermaTDI 3bar tune, South Bend Stage 2 daily driver clutch. I routinely change oil and filters every 5000 miles. Best I have so far is 51.87mpg.