Idling Diesel Engine am I doing any harm to my engine?

[GringoPhil]

Hi All,

I'm in a very nice but shade-free RV Park & I don't run the engine constantly, but perhaps 1/2 hour on and 1/2 hour off, between about 11:00 A.M. until 6:00 P.M. The sites here are spacious and I'm quite sure the exhaust isn't bothering anyone (If it was, I would stop doing this, of course). What I am wondering is, am I doing any harm to my engine? All the gauges have remained dead center (temp, oil pressure, etc.) and after several hours, the fuel gauge hasn't budged.

Asking for opinions,

Phil