gearbox oil??!!

[[ Benj_16v ]]

last time a mate looked over the clio, he said i need some gearbox oil and put the little he had left in the car!im worried that i myt be running low on it!
is it hard to top it up?because its under the car i think??
and is it crucial i get some oil in?

cheers

 

[TomTom]

On level ground, on the front of the gearbox you'll see a plastic wing nut, take that out and you want it just to trickle out of that hole - thats the level plug.

 

[SBV116]

^ and the filler if you didnt know, fill it up until it trickles out!