I agree with ya, Killer. There isn't all that much difference between 5w30and 10w30. I sure wouldn't lose any sleep over it.
On the other hand, I don't really care for multi-viscosity oils. They have always seemd to take on the characteristics of the lower viscosity rating more than the higher; that is, they seem to run a lot thinner and in my mind that's not a real good thing when it's hot. Cold weather is a different story, but since spring is just starting to sprung here, I prefer 30 or 40 weight oil. That's just one guy's opinion, tho.
