I have had a Meyers Manx dunebuggey made from an old 1958 Volkswagon frame and engine. It was given to me by a friend that moved to my area from California. Finally got it running this week. The oil had sat in it for about three years so I got the oil hot and drained it. Only thing I had around was some left over 30 weight HDEO in the blue Wal Mart bottle we had purchased for the chain drive on a old Case skid loader. It runs great with it and looks clean. Never owned a VW so what oil should I run year round? Air cooled is a little different for me.