I have said and will say it again, It all depends on how you dirve your car! "A guy from a "famous oil company" (aren't they all?) who makes blanket statements about myths is simply put wrong!
"If you have a newer model car (1996-2005) and drive short trips, use a 5/20 or 5/30 oil, depending on what your owners manual says. Change it every 3,000 to 5,000 miles.
Here's why. Every time you shut your hot engine off, the moisture in the air inside the engine condenses and creates a tablespoon of water that ends up in your oil, causing sludge. The only way to remove the water is to get the oil temperature above 212 degrees Fahrenheit when the water will turn to a vapor and be sucked out by the PCV valve."
From
NASCAR.com
"Nearly every new vehicle owners manual states that severe drivers should change their oil every 3,000 miles. Most drivers don't consider themselves to be severe drivers, although they actually are.
A consumer poll commissioned by Pennzoil/Quaker-State asked 3,300 consumers if they were severe drivers. When asked with no definition, 85 percent of the respondents assumed they were normal drivers, and only 15 percent thought they were severe. When given parameters that define severe driving, 55 percent responded that they were, in fact, severe drivers."
Quoted from Aftermarket.org
My point is if you drive in extreme conditions, short drives where the car never gets to operating temps, dusty conditions, extreme weather changes, hot/cold, etc, you need to change your oil more often. The only true way to know is with oil an oil analysis!