One of my buddies has a Ford Escape and a VW Golf. We went to China Mart and he had no idea that Synthetic oil was so cheap. He was used to paying $90 for an oil change at a local shop. He goes 10,000 miles on his Ford and, something similar on his Golf oil change interval. Now he is asking if we, which means myself, could do it for less. BTW, All of his and hers miles are highway. I plan on using Mobil 1 or PP on the Ford. But I am curious as to what to use on the VW. The VW is a diesel with NO turbo. I am leaning towards Mobil 1 Turbo Diesel Truck 5w40, or Rotella 5w40. Just cause I have heard good things about them. Also, since I will be near a NAPA I just plan on using one of their NAPA Gold filters. Although they live near an Auto Zone, they could get a Boch. What is your opinion on the VW? What should I use? Thank you.