smart to stay with 0W20 while in warranty however if your OM says for towing or off-roading you could step up to a 0 or 5W30 then go ahead. Don't think you need unicorn tears such as Amsoil or Redline absolutely nothing Pennzoil Platinum or Mobil 1 ESP cant handle.
something like this
https://www.lowes.com/pd/Eaton-100-Amp-12-Spaces-24-Circuit-Main-Breaker-Meter-Combo-Load-Center/1000306325?user=shopping&feed=yes&srsltid=AfmBOorWR4i6kSXdzTVxpTAoJMCM2UWM3r2V2bwZnqds4vS0azBfbEOzFsw&gQT=1
Nuff said air cooled engines get hot and these engines aren’t just spinning a lawn mower or tiller blade. They’re put under high strenuous loads which shear oil easily. Regular maintenance does the equipment good. You’re well ahead of the game
He needs to know exactly what the insurance company and their underwriters want so he knows what he can do to satisfy them. I get it a service panel in a confined space tucked away in a cabinet won’t fly.