Originally Posted by Silver Dolla
...I have no manual...
i use 5-30 mobil 1 syn, but the manual calls for any quality 30w oil...
one quart is good for 2 oil changes + a little left over.
in the cold months 0w-30 will pull much easier on starting, but below ~35f they are hard to start regardless.
so if i need to use them when cold, they come indoors for a bit to warm up.
attached is a pdf of the owner's manual
which should be correct for your genset....
it is a 2mb file, so it may take a few seconds to download, but u can copy and save it to your 'puter.