Review on Convenient Oil Change Funnel for Atima Portable Inverter Generator & Compatible Models - Mess-Free Solution for WEN, Yamaha, Westinghouse, Generac, and Rainier Generators by Dean Gomatham

I could not find a suitable oil hose for the Westinghouse iGEN2500. I took a chance and voila, the threads are screwed in well and the gasket really stopped the oil from leaking out. Remember that you are not tightening the cylinder head, you just need to press down on the gasket a little to make stripping the threads easier. To keep the oil temperature below the pipe's "melting point" I use a battery powered fan - ASIN B00Y1VZ00E, a Fluky fan powered by a single 18650 battery. I like the flexible design to not damage the oil filler hole with a strong metal tube. During my alternator break-in I have performed a number of oil changes and have not yet "spilled" any oil in the alternator. That works great.