Engine oil systems cleaners will soften up the deposits typically. This will cause less abrasion wear over all as they move through the system.
I’m not sure about HPL’s particularly. However the one I am familiar with, you add a quart in, run for 10-15 minutes, then change the oil and filter.
While not quiet industrial filtration / high velocity flushing. The concept is the same. I’ve been studying this highly as we own a small filtration company. And in 2023 I plan on growing it substantially across a large part of the country.
I would be interesting to build a small, 25-50 gpm filter cart that you could hook up to the engine. By pass the oil cooler for return. Thread in through the drain and kidney loop it.