asphalt sailor wrote:
We bought a 2001 DP in 2011. It had 45 hours on genset. We have added 120 hours to it,and it has performed perfectly. That said, it doesn't hurt to run it for 20-30 minutes with some load on it several times a year if it is sitting.Starting the main engine and at least moving it around the yard occasionally, excercising the transmission is possibly the more important practice.Maintaining oil,fluid & filter change schedules is paramount,that from 40 years experience operating class 8 tractor-trailers .....
That advice is contrary to that of the generator makers (who suggest an hour a month at around 50% load) and the diesel engine makers (at least Caterpillar and Cummins) who suggest that if the engine is started, it is driven at least 25 highway miles-- enough to get the oil, not just coolant up to operating temperature.