Hello everyone. I just purchased my first ever generator. The purpose of the generator is for emergency use and for basic needs. The generator is the Honda EU2200I. I plan on keeping it for a long time and following the service schedule. Heck, I even irdered the shop repair manual for it. The owners manual is clear about using 10W-30 motor oil. It is also clear about an oil change at 20 hours and then every 100 hours. I am thinking break in period. I contacted Honda via a phone call and they told me that they build, test, and suggest using conventional motor oil. Honda is not clear in the manual if I should use conventional or synthetic oil. The person from Honda said conventional is what the engine was designed for thus using synthetic is not needed. What are your thought? Due to a break in period, I was thinking about using conventional oil for at leadt the first 20 hour oil change. After the break in petiod should I keep conventional in it or put synthetic in it? In reality, would it matter? In other words if I keep the maintenance up, would synthetic matter? Thanks for the help.