Is that to be used as an engine flush or oil additive?
Many threads on it, check through this section https://bobistheoilguy.com/forums/forums/otc-and-third-party-oil-additives.5/, there is dedicated thread to it. Basically to be used in place of a quart of your regular oil choice at a 5:1 ratio oil:HPL Engine Cleaner 30. I believe that was to be used for 2000 miles depending on your engine condition. Recommended to replace and cut open your filter at 2k so you can expect and go from there. Many of us have used it for a full OCI AFTER checking at the 2k.I'm using it for 1,000 miles as a cleaner.
It is a fully formulated oil, definitely NOT a flush product, maybe you could consider it more toward an additive but even that is not quite correct.