1. stuff a paper towel under the spout when adding, checking or changing the oil. Saves a bit of hassle with cleaning up. 2. You don’t need to buy a screw in spout to change the oil. Use a milk jug, or cut the top off a water or soda bottle, stuff a paper towel under the oil fill neck, insert bottle over neck, and tilt.
https://www.amazon.com/WEN-55201-Magnetic-Generators-compatible/dp/B07643J11X