Project Mall Runner

[NTIman]

Toyota's oil is basically just slightly modified Mobil 1. As far as break in oil, modern stock engines are much easier to choose an oil for during the break in period. The stock valvespring rates aren't high enough to cause damage to the cam, where most break in failures occur anyway (literally I put Toyota valvepsrings in by hand). That's where extreme pressure additives make a significant difference, and also part of the reason why lower ZDDP levels in oil don't destroy engines.

I've only ever seen one Toyota engine have a failure from particulate matter in the oil, and that was a VVT gear on a RAV4. That happened in my 9th year with the company.

You're going to need head gaskets before you'll have a problem with any rotating component.

I've never used factory oil in my Toyota's or my Mazdyota. I don't think there is a truly bad option out there. L