10w30 or 10w40 seem to work well.
sae30w
I use two stroke oil
I use 5w-30
20oz which is LESS than a quart of oil.
It depends on the mower. Some use 30 weight. Some use 10w30.
Usually, its SAE 30.
yes
sae 30
10w30 will do.
Hd 30w
30 wt oil
30W for summer