hello i am after a bit of help i brought a vs commodore a week later it started tapping so i pulled off the rocker cover and found a heep of milky slime in the rocker cover and a bit in a round the rockers it has not been using whater and i done a oil change but there was none of this stuff in the old oil i am also geting this stuff under the oil cap any ideas as what it could be thanks head gasket ? or inlet maifold
It may just be due to the car doing short runs which don't allow the oil to reach operating temperature to evaporate any condensation. I'd change the oil and filter before anything else.