I can't find the answer to this very basic question. Where do I want to keep my oil level at? A photo of my dipstick is enclosed. It looks to me like the mark at the base of the stick (4) and the mark at the top of the flattened part (1) are the high/low marks. But there are also marks (2&3) around the number 584 which is in the middle of the flattened part of the dipstick.
Engine is a Universal M3-20.
What is the significance of 584?
Engine is a Universal M3-20.
What is the significance of 584?