I wonder if you can use SA/SB labeled non certified mineral oils for 100,000 miles in a new vehicle? lets say you do 3000 mile oci with this oil, will the engine make it to 100,000 miles without failure? would the manufacture know the difference in the event of a failure? Imagine you brought in all the invoices for oil changes if they asked you. is anybody in this practice? LOL! I would love to hear opinions on this subject!