Top of the engine. Use a 24 mm socket and remove the round black oil filter cap to access.
12
You failed to list engine size and make. If it has a horizontal shaft 5−7 h.p. Briggs & Stratton non-Vanguard engine the total oil capacity is 20 ounces. If it is a Vanguard 6 h.p. engine the capacity is 24 ounces. Add 20 ounces and then check the oil level. If it has a Tecumseh engine it can be 20 or 21 ounces. Do not overfill.
Hemi, lower passenger front of the engine. 3.6, top center front of engine. Use a 24 mm socket to remove the plastic cap to access.
10w30
24 oz
24 ounces.
I always use a 24:1 in all my Chrysler engines.
24 quarts with filter
5w30
Change oil, fill oil filter before instillation and crank engine over by hand to lubricate all parts before trying to start.
24 oz per leg 5W