AMSOIL. Pricey though. Castol Syntec if to expensive.
Mobil 1 Full Synthetic
The best motor oil for you car depends on the car. Many old cars can only handle regular motor oil.
Amsoil By far the best.
Any major brand synthetic oil.
All major brands of motor oil are manufactured to the same standards. To pick a best if impossible. But saying that Synthetic is superior to conventional oil.
It is a combination of synthetic oil and conventional oil.
Mobil synthetic 5w-30
No, you can even mix synthetic with conventional oil. It will do no harm at all.
That's okay.
100% Synthetic would be a good choice.
they are all good, but quaker state 5w30 seems to have an edge
5w-20 of any synthetic motor oil brand.