This is excellent advice!!!YZEtc said:You can use any kind of thin, oil-based lube that comes in an aerosol spray can (WD-40, Bel-Ray 6-in-1, etc.), but you'll also need the tool to force the lube down the length of the cable, known as a cable lube tool.
Pull off the rubber boot at the end of the cable so the lube can escape.
I also put a dab of grease on the barrel-shaped end that attaches to the clutch lever.
The whole operation takes 3 minutes.
Been doing this once a week for 20+ years.
Yes, you can also use this on the EXUP cables.