That's an incredible deal, but a bit too far to travel for me
For anyone in the UK, I use Mobil1 and Costco seems to be about the cheapest supplier I've found over here.
Incidentally, does anyone know why we have oils marked up as either for Diesel engines or Petrol (gas) engines ? I've often wondered what the differences are, is it extra additives in the diesels ? Reading that thread it infers that you could use the diesel oils in petrol engines.
Brian