tiptronic Gearbox Oil

[mariosp]

Hello,

I would like to know your feedback on Gearbox Oil brands, since I cannot purschase original from dealer because it is 20 Litre box and I dont need so much.

Could you please suggest me a brand and quanity in litres?

Thank you

My boxster is 2004 tipotronic 2.7 engine

**Also I would like to ask you if someone know the gearbox brand? ( ZF)?

thanks

Marios