Drive into a petrol station the attendant wekas fuel and another goes into your hood and checks the oil. The oil has hardly settled.
"Boss! inataka oil, lita moja"
So you say "Weka"
He puts the oil then he pimas again and now says,
"Iko sawa, iko full"
But the oil has not settled yet again.
By the time the oil settles, its way past full.
(I doubt these guys are trained... or are they?)
So what's the damage?
Too-high oil level causes frothing in the sump/crankcase. Gas recirculating mechanism takes oil foam into cylinders. Unburnt oil goes down exhaust and messes the catalytic converter-
-Non-Expert Opinion..and if its a TDi/diesel, ....go to church or get someone to pray for you.