Like, there is part of a reference to it on the Core One maintenance page. Apparently an older version of the page goes into detail about it.
It is allegedly suggested by Prusa support.
It is suggested for the XL, which has the same general construction as the Core One.
"tube of Prusa Lubricant is included with the Prusa CORE One. It is used to lubricate the smooth rods with linear bearings, and to lubricate the Z-axis leadscrews."
https://help.prusa3d.com/article/regular-printer-maintenance-core-one_829710
It is recommended to regularly take some time to maintain your Prusa CORE One/+ regularly. This should be done even if the printer is working perfectly. Useful tools Besides the usual tools, such as Allen keys, needle-nose pliers, and IPA (Isopropyl…
Dennis
Doppelmembran-Würgenippel