It is a combination of synthetic oil and conventional oil.
No, you can even mix synthetic with conventional oil. It will do no harm at all.
That's okay.
5w-20 of any synthetic motor oil brand.
The Correct Motor Oil for this vehicle is a 10W40 Synthetic Motor Oil
Yes but once you do there is no turning back and no mixing regular motor oil ever again with the synthetic oil....only straight synthetic....or use semi synthetic....now that can be mixed with regular motor oil in a pinch.
Synthetic motor oil.
It is Joe Gibbs synthetic racing oil.
Yes, and you can even mix them together.
I would use a synthetic 20/50 motor oil
It is used for lubrication.
High milage motor oil has extra additives which help prevent oil leaks.