Linear rail and Lead Screw lubrication

I used to use the white grease to lubricate my linear rails and lead screws but the grease started to harden and the motion is not as smooth. Also I noticed that some spot on the linear rails started to rust so I took everything a part to clean and reapply lubrication.

I would like to move to Superlube grease for the lead and linear rails bearing after I coat everything with the superlube oil. While most youtubers recommends using PTFE based oil/grease, Ratrig website advise to avoid additives such as PTFE, graphite, molybdenum disulfide, etc and stick with grease grade EP00 or EP000.

I would like to know if I can go with what I have and finish the build or I will have to wait couple more days to find the recommended grease by RR.
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