fiat punto sporting 2000 trader sold it said its had new gearbox 6 speed, and a new clutch their seems to be fluid leaking under neath and after a long run a lound rattleing noise from the gear box
if under warranty take it back for trader to fix, sounds like a seal has not been put in properly. and as you are losing oil, this might account for rattling noise. check oil level before driving car to trader.
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