Gearbox Oil change or not ???

[Pimm]

My car is going for a P3 in the morning.

 

I do not think the gearbox oil is included in this but wondered while it was there should i get them to change it or not. The car has 35,000 on the clock.

 

What do i do chaps ??

 

[sunset350z]

I would, ask how much it costs first, or save a few pounds and do it yourself or a local mechanic. Its pretty easy to change and at the same time you could change the oil in the diff as well!! Nissan uses Castrol Syntax 75/90 for both gearbox and diff.