Got car back after second year service (done 35,874) done in Durham and they reckon it has a gearbox leak (as far as I know.) Going in again sometime next week for a better look. Anyone else had this?

Covered by warranty tho

Edit:
Searched: https://www.fiatforum.com/grande-punto/184803-g-punto-1-4-sporting-needs-3rd-gearbox-opinions-please.html

But can't say mine will be due to over-revving. I would say 30,000 of my miles have been done on the motorway. If not more. Will update when I know more