about one quart, maybe a hair over. you want to fill the generator until it can accept no more oil. 5w30 should cover most temperature ranges.
50:1 with an appropriate oil.
yes you can but you shoud use redmax oil in sted
40:1
50:1
40:1 owner's manual for a homelite st 185 trimmer says 32:1
2%
50:1
50:1
50 to 1
50:1
50:1
50:1