I wish I could tell you what the issue is, but I have the same problem crop up frequently on my View with the diesel generator. I've tried various oil levels and different oils (including synthetics). The error does seem to happen more often when using synthetic oil.
It happens sporadically, but mostly at higher temps (90+). Sometimes the generator will run fine when in motion, sometimes it dies. Sometimes it runs continuously for 8 hours without a problem, sometimes it shuts down with no warning after 30 minutes. Sometimes it starts right back up and runs for hours, sometimes it starts back up and runs for 5 minutes (until I let it cool down).
I've gotten used to it, but I'm taking it to Onan before the warranty is out.
