This is Toro premium engine oil for both diesel and petrol engines that suit this spec.
This engine oil is used in the Yanmar engines on Toro 7500-D machines.
This oil meets or exceeds the following standards
Diesel engines: API CK-4, CJ-4, CI-4
Petrol engines: API SN, SM, SL
5 Gallon tub.
When used in Toro machines you get the extended servicing intervals mentioned in the service manual for that specific machine