Out of the box everything looks great. Manual says .6qts of oil but held a whole quart. Typo? Only about an hour with light loads so far but everything works great.
Update to my Review of 4 days ago. We are still very happy with the iGen 4500, just wanted to report on small issue of the automatic choke. Thanks to YouTube, I found an easy to follow repair. Seems the automatic choke was not connected to the control module from the factory. Took about 30 minutes to repair myself. As stated, we are still very happy with the iGen4500. This thing is amazing!! Love the remote start. And, yes, it will handle the A/C on our Camper without any problem.
A fellow camper was using a iGen4500 and I was amazed at how quiet it was when operating. He was very please with how it supplied power to his RV when boondocking. I decided to purchase one for my RV and glad I did.
We bought the iGen4500 DF to provide backup power for our all electric home when we have power outages, which we seem to be having more often. This generator easily provides power for our 2 refrigerators and a freezer giving us the peace of mind that we won't loose our food. It also provides enough spare power to run many of our other needs to sustain living in our house after a storm or other outages. We got the Dual Fuel model as we also have propane tanks just in case there are gasoline shortages.