From the mid 90's until 2009 or there abouts, I was performing 10K changes in everything I owned and using the orange Fram filters to boot. Never an issue, ever.

But, the power of suggestion here on FTE has convinced me to shy away from that maintenance interval and return to MC oil and filters and perform 5K changes. I'm not noticing any difference in performance, mpg's or reliability and I'm spending about the same amount of money as I did when using the Mobil1 extended performance oil.

My comments are clearly not scientific and I've never owned a vehicle beyond 150K of my own miles. So, I guess a man's mind is his worst enemy.