I would start with the easier options first namely:
Check and if needed replace rocker cover gasket. (use OE/Genuine gasket and tighten bolts well).
2. Check crankcase breather hose. Check condition of hose and tighten jubilee clips firmly.
As stated above the current location of the oil might not be where it originated from.
Check and if needed replace rocker cover gasket. (use OE/Genuine gasket and tighten bolts well).
2. Check crankcase breather hose. Check condition of hose and tighten jubilee clips firmly.
As stated above the current location of the oil might not be where it originated from.