only got a renault
AO Silver Member
Join Date: May 2007
Location: United Kingdom
When you change the clutch you can lube the 1st motion shaft and splines with copperslip, this allows the clutch arm to move much easier, and makes a noticeably lighter pedal, I've done it on my V6 and on trannys at work, it does help, but you are always fighting the frictional forces required to contain the torque/bhp your engines chucking out, usually by stronger (heavier) pressure plate springs.
Not all garages bother with this lube.