I heard it causes hemorrhoids, too, but do my best to filter out a lot of "static" I hear.

We broke in my engine on "legacy" Brad Penn 30 break-in, but I've got 7 quarts of Driven Hot Rod 10w40 conventional ready to replace it when I drain the pan.

There's also some Amsoil on my oil shelf that will get used if/when I decide to start using synthetics, again.