Motorcraft is another example of this. Ford specifically recommends this brand (obviously since their name is attached to it), as the "preferred" oil to be used for their cars. It's a semi-synthetic, and I've heard great reviews about it. You could use other oils that meet their spec, of course, but I have peace of mind knowing that I'm using an oil designed and tested by a specific manufacturer, especially at the price you can buy it for at Wal-Mart!