I run Mobil 1 in both our v8 4runners and in my pro-touring car,that does get run hard! I ran it in my old jeep tj before I sold it. I love the stuff! I run it 15,000 in both our t4r's,mine has 190 on it and the wifes has 170 ish on it,they never burn a drop.
Depends on distance one drives. Short trips only to/from work under 10 miles is harder on oil since moisture don't burn off which breaks down oil. Change oil more frequently on those vehicles.
My wifes car is short tripper but we try to drive it more each week but that don't always get done so I change it more often, about 3k since the year mark determines it mostly. I still run full syn in it though.
Just one other thing most people never do is change that PCV valve every 80-100k. My 4Runners wasn't sealing right at 100k. Tried to clean it out with no avail so out it went. It's a cheap forgotten maintenance item for sure so just a remind here. It can cause some havoc.