Noticed fresh engine oil just below intake manifold near the oil filter
After do some readings, I have found out this is because of worn gasket

So, I have started to read on how to do the replacement and it was fairly easy

Oily area on yellow circle, picture from Google

Remove airbox
Remove power steering reservoir tank and alternator to get into the oil filter housing

Remove the worn gasket

Comparison, new and old gasket... and the price