possible to add grease to clutch cable?

is this even possible, cuz my clutch pedal squeeks everytime i press it or let it out slowly. i theorizing that the excessive heat the engine puts out could have dried up all the grease inside the tube that holds the clutch cable so now the clutch is rubbing against something? any other ideas? i know this has been posted before and wasn’t resolved, so i’m posting it again because i know other members have the same damn annoying problem hehe.