A lot of bad information and assumptions in this thread.
The Onan 4,000 inverter generator is not out yet to test.
What James tested was not a 4,000 Watt standard Onan. Neither of those vans comes with 4,000 Watt generators. The older Travato had standard 2,800 Watt generator, and new van had an Onan 2,800 Watt inverter generator.
Onan specs show some standard 2,800 Watt generators are as loud or louder than standard 4,000 Watt Onan, so can’t go by size (power rating) alone.
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