Interesting information, I think the auto manufacturers will advise you to let's say change your oil up to 7.5K miles to increase the vehicle's reliability and decrease maintenance and assuming if you lease the vehicle why not? The oil companies will tell you 10K so they can compete with another and make you think that their oil is the best in the world.
One thing you want to becareful with, is buying an oil with like 5w50 or 10w40, the oil companies add polymers into those oils so they can runs liquidy during a very cold start up and yet keep consistent during operating temperature. However, what they won't tell you is those polymers eventually get stuck with in your motor. Another thing I read form multiple sources is adding oil additives to your oil with newer motors is not such a good idea either the oil itself will works its magic and keep your motor protected.
I think keeping the oil as cold as possible is not good either, you need to keep at an optimum temperature not sure what it is, but I know for an automatic transmission its optimum temperature is 190 degrees Fahrenheit.
Moreover, as long as you use the recommended weight and certification by the car manufacturer; with API rating on the oil is now I think SN your good. Stay away from no name brands unless the vehicle is for someone you don't like lol. Change 3-6K and/or your drive less then, that 4 times a year you'll be ok. Always check the valve cover cap for sludge and /or foam.
I used Purlator Pure 1, New Fram Filters, Mobil1 Oil filters and either mostly Penzoil Platnum Synthetic 5w20 and/or Mobil 1 oil
that's my 1c .
When you get knee-deep in a situation, floor it.