Oil For 99 Diablo Roadster?

I know this has been discussed on many forums but I would like some updated info on what oil to use in my 99 Roadster. I was going to go with Mobil 1 but have read online that the oil has changed in the past few years and is not the same as it used to be. I would go with the factory recommended oil but I have a trip coming up this week and I don't have time to have it shipped to me. Also, I can't help but think with the advancements in technology that there is likely a better oil out there for it.

Let me know what you guys use and any pros and cons associated with it.

Thanks.
Gregg