How much oil is in a 724 ariens snow thrower?

Most of these small block engines on mowers and snow thrower/blower machines use 20-22 ounces.

Sidebar: I'm switching my machines over to the synthetic oils I use in the cars. Most all the engines indicate the same type of viscosity recommendations like 5w-20 or 30 for cold climates, and I've got plenty of that on the shelf for the cars.