Gunk on oil cap

[fezza37]

Hi Guys,

Sorry this isn't Astra related, My wife's Corsa has gunk on the oil cap like in the you-tube video below, its not loosing coolant its only driven 3 miles to work and back, i have done an oil and filter change but its still on the cap. 

in the past couple of years its had the cam belt done the head skimmed, as said its not loosing any water from the bottle, 

is this OK? what should i do?

thanks
example of what it looks like below
https://www.youtube.com/watch?v=pwgk255nTjA

[andyp]

Hi take it for a good run warming the engine should burn off the moisture build up and I mean a good run

[fezza37]

Hi take it for a good run warming the engine should burn off the moisture build up and I mean a good run

Thanks will do

[Big Dave2]

Yes, take it for a good old Italian tune.

It's the short journeys that is causing it. The oil isn't getting hot enough to boil off any water vapour.