I bought a Mobil 1 full synthetic 5w-30 from Wal-mart today, like usual. I see the high mileage for the same price, advertising 75K+ miles. I'm nearing 74k, daily driven vehicle, not tracking any more just daily + spirited driving.
Have you guys switched or planned to switch?

 

No but I do always get the Extended Performance. I still do regular oil changes though, I just like the EP for the additives.

 

I use the high mileage for the better lubricating properties.

 

High mileage oil is a marketing gimmick.

 

In theory there are some seal conditioners in the high mileage stuff. When I pulled the valve cover off the Ralliart at 140,000mi the rubber was still pretty soft compared to some of the older cars I've cracked open. I believe that rubber compounds have come a long ways in the last 20 years and that high mileage oil is mostly marketing as well for any modern car.