Ya, mobil one is one of the best oils out there. The warrenty is void on corvettes if anything else is used other than mobil one. I run it in my truck and it seems to work great. Castrol is also a good one. These two brands you can find pretty much anywhere. If you ran some thing like Ams oil or Royal Purple, you would have to go to a performance shop or order it. However, those oils are thought to be the elite. If you are going to switch to synthetic, you better do it soon. If you run conventional too long, switching to synthetic could lead to a few leaks.