Depends upon what you paid for the oil as well as what your normal OCI is.
I'll run the SSO in our newer Accord to 15% MM or so, which will be around 8K in November.
OTOH, I paid around $2.70/qt for this oil bought from a family moving to either Montana or SD that I found on a CL post.
When I was younger and hungrier, I considered various promotional opportunities that would have involved a super long commute. I shied away from that and am glad that I did. However, if I were looking at 150+ miles each workday, I would have been all over Amsoil SSO.
Cost would not have been determinate, rather if I were wracking up serious miles extended drains would have been desirable from a standpoint of less time spent under a car or waiting for a third party to do the job.
With the calcium content that SSO boasts, TBN wouldn't be a problem on long drains.
SSO does have a strong add pack so you do get what you pay for in these oils. What's the basestock blend in these oils?
Your guess is as good as mine but based upon what Amsoil has provided WRT physical characteristics, it ain't all PAO.