I just sent my oil off to Blackstone Labs to have it analyzed. The oil was Mobil 1 5w-30 Synthetic for High Mileage engines at 15k on the ODO. So far I ran the OE oil until 5k on the ODO then changed for Mobil 1 5w-30 Synthetic and a K&N oil filter which brand I am still using. I then ran that until 10k on the ODO and changed the oil and filter to the oil I had analyzed at 15k on the ODO. I changed to the High Mileage oil because Mobil 1 claimed it had better protection for high heat and oil consumption than there normal synthetic. I am now currently using Amsoil 0w-30 Signature Series which they claim is good for 25k normal service and 15k severe service I will test at 20k miles on the ODO to see how it is holding up. According to Blackstone the engine looks good.
Also Blackstone stated that the filtration looked good but the viscosity was a little low for the Mobil 1. ( I cant figure out how to make it show up so just click the attachment its in PDF)