Regardless of what high mileage claims are made. I will always change at a maximum 3000 miles or 100 engine hours. Even the owns manual says to stick with their recommend change intervals when using extended oil drain interval oils. To each their own I rather change oil than internal engine parts or turbos.
Everyone is entitled to do what they wish but changing modern oils on Modern engines at 3,000 miles is in reality, a waste of money. There have been plenty of used oil analysis done on motor oils going by quality life index and the car says and they are almost always spot-on. If you are changing oil at 3000 Miles that still has 85% of its life left then you are actually throwing good money away. Most of these vehicles will go a very long life span, longer than most people need or even expect with even neglected oil changes so doing it when you're supposed to or even slightly before is just fine but the 3,000 Mi interval thing was just a scam perpetuated by Jiffy Lube and the Quick Change Oil places that sprang up on every corner in the 80s.
Also, there is a point to which you get no extra benefit or protection or longer life from parts.
The problem is we really never know the exact balance point here.
In a controlled situation you could have a constant supply of fresh oil in your engine at all times and there is no guarantee that would make internal engine parts last any longer than changing the oil at 3,000 miles, 5,000 miles, or 7,500 miles.
We all have to do what makes us feel good or at least better but I can guarantee that in most all applications oil that is changed and disposed of at 3000 miles had plenty Perfect protection and miles left in it.
Then of course there's that other industry accepted thing about time. Look at people who change well I time basis even though they have very few miles on it. They want to convince you that once you open the original can of oil it starts to oxidize and degrade and all that stuff. Well that is a true fact it is so minimal it makes no difference.
There are factors that affect this like where the vehicle is stored Etc but most Vehicles could be parked in your garage and sit for four years with oil in it that had 500 miles on it and that oil after sitting for 4 years would still have 95% + of its life and protection if you were to analyze it as the new all you would put in that day.
Facts are one thing and real-world results are a thing also. What makes us feel all good and warm and fuzzy doesn't always necessarily coincide with these other two.