the aerated oil is a little concerning
are you sure it is aerated, clearly our problem is we can't see, hear or examine it from our key boards
I have only ever seen this once and it was incorrect fitting of the oil pick up pipe gasket
It had been fitted the wrong way round
best you think long and hard and picture yourself fitting the pick up gasket
There have also been alot of oil pump issues these last 8 years
If the problem turns out to be the pick up gasket get you cock out slam the bonnet on it a few times and then send me 500 quid in cash