onan 4K Generator run for a full tank?

Matt_Colie wrote:

thehippie wrote:
How long does the Cummins onan 4K Generator run for a full tank?

We need to know what load you have on it a model would help too.
I have four each ~4kW capable Onans and they are radically different as they vary in age from 45 to a very young 20 years.

Matt