Before this thread explodes:
1.
BITOG is the generally accepted authority on what really works
2. Seriously, who ever has a problem that could have been prevented by more frequent / better oil? Most cars go to the junkyard with any of a million other problems, never anything that can be attributed to oil habits, even among those who follow the manufacturer's recommended schedule instead of using $10/quart oil every 3000 miles.
One data point does not a trend make, but my truck has 170,000 miles on it and runs great -- and I've been pretty awful with oil changes. I've had a few different mechanics, each of whom probably uses a different brand; never used synthetic or special high-mileage formulations. I've
usually changed it when the idiot light goes on, which generally has been 6,000 to 7,000 miles. If I said all that without telling you how many miles I have, a bunch of people would post that my engine will seize before 100,000 miles. I don't get any smoke, I've got all the power to tow my 6,000 pound camper, etc...