Originally Posted by DaveBall
Back in my ill spent youth, I remember going to a large packaging plant just south of Vancouver either in Richmond or Delta, with my father. This was back in the mid 60s and I was only about 12-14 at the time. It was an oil packaging plant. They had just finished filling up cans marked Shell, and were just changing over to a new batch of cans marked Texaco. All from the same big bulk container. There were also stacks of cans marked Pennzoil and Quaker State as well as Castrol GTX. The name on the front of the packaging plant was Castrol. So, who really knows what really is in those oil cans.
As to SG Spec. that is just fine for our bikes. It works as it should.
For sure, that happens al the time. Heck, Shell, Esso, and Petro Can gasoline all comes from the same source.