No knowledge of this so I looked it up. The link shows it as a centrifuge.
https://www.dieselcraft.com/
Centrifuges for oil and /or diesel can do a good job as has been discussed here before.
However, for the majority of us who put on only up to 200 hr yearly they are not worth the investment unless you simply have to have one or in your case already have one.
Try contacting the company at the link above for specific info for setup and use.
Considering your question about polishing fuel check this thing out and use it if it is indeed a fuel centrifuge or find out if it can be adapted if it is for oil.
I can guess, pretty good idea, but better you contact the mfgr.
A photo may have helped.