When you top off your motor oil, avoid spilling oil on your engine by wadding up a couple of paper towels around the oil receptacle on the crank-case.
This will absorb drips and spills. https://www.webwiki.ch/auto-works.cc/%D8%AA%D9%88%D9%8A%D9%88-%D8%AA%D9%88%D9%8A%D9%88-275-70-18-275-70-18