Black oily water out of exhaust on startup

[mick666]

Hello

I've got a 2015 981 Boxster S. It's got 20K miles on the clock.

It's recently started spluttering what I can best describe as black oily water out of the exhausts on startup. The engine sounds fine and the car drives OK with no warnings and all temperatures, pressures within limits etc.

It's essentially black sooty water as far as I can tell.

Any ideas?

Cheers

Mike

[Slippydiff]

Are you doing a short journey to work and back home every day by any chance ?

[GT4RS]

Take it for a good long drive, fun roads, plenty of right foot.