I've read in the posts that the Havoline/Chevron oil is pretty good dino oil, but what about the Equilon oil. What are it's roots and is it as good as Chevron? With all the mergers and changes, today you don't know what you're getting. If you check the Havoline site you will find that Havoline and Chevron Supreme are the same as far as specs go. How is it legal to sell another oil with the same brand name and different specs as is apparently the case with Havoline/Equilon?