Just bought a 5500 Watt generator with a 10 HP Robin/Subaru engine. In the owner's manual it specifies that one must break in the engine according to the instructions provided in the separate engine manual. You guessed it...there's no instructions at all in the engine manual....so I'm left with some questions. FYI...This unit is not going to be used commercially just yet, so it can be broken in in whatever manner it needs before being put into full use. How does one break in a generator? Do I just run it flat out (no throttle control provided) for some specific amount of hours? Do you need to break in the generator/electricity producing side of the unit (as opposed to the engine itself )? Do I need to have an electric load on the generator during the break in? Will it do any harm to have the generator running without a load attached (can current back-up into the electricals and cause some damage if there is nothing electrical attached to it...sorry if that's an ignorant question...electricity is not my thing)? At what point should the oil be changed if there is a break in required? Manual says first change should be at 50 hours of normal operation this seems kind of long to me. Anyone switch over to synthetic oil? And if so, at how many hours?