What oil do you use in a 4 cycle motor in a toro rototiller?

For a 4-cycle motor in a Toro rototiller, it's recommended to use SAE 30 or 10W-30 oil. Ensure that the oil meets API service classification of SF, SG, SH, SJ, or higher. Always refer to the owner's manual for the specific oil requirements for your model, including any seasonal recommendations. Regular oil changes will help maintain optimal engine performance.