Full synthetic is an awesome choice if only someone could make an oil filter that would live up to its potential or at least live long enough to justify the expense. They don’t, I’ve proven it repeatedly with oil samples over the years. I’ve got several service trucks between 3-400k that never had anything but castrol, not many gas burners other than service trucks carry 3 tons extra everywhere they go from birth to death. Use plain ole castrol 5w30 and keep on driving