How good is this polaris oil? 0-50

[Jmoney7269]

This is polaris top tier oil. I received it from a gift certificate from a recall for my girls RZR200. I got four gallons. I'm wondering if I can use this in my exmark Parker transmissions which call for 20w-50 engine oil. The machine has 1100 hrs on it and I've used leftover motul motorcycle oil in it forever changing every 250 hrs. When I drain the fluid and change the filters it alwsys looks brand new. Please advise

 

[Oillover]

Use with confidence.