mystik sea snow vs jt4 full sens

[mojo]

mystic semi synthetic vs jt4 synthetic blend snowmobile oil

I been using sea snow in my supersport. bought a 600 classic which has Polaris ves oil almost gone. just wonder which oil to use, like to stay with sea snow so i'm buying 1 oil vs 2 types. or do I switch over to jt4 run in both sleds?

 

[groomerdriver]

I been using sea snow in my supersport. bought a 600 classic which has Polaris ves oil almost gone. just wonder which oil to use, like to stay with sea snow so i'm buying 1 oil vs 2 types. or do I switch over to jt4 run in both sleds?

What year 600? Valves or not?

 

[mojo]

2004 does have the valve.

did little research looks like it should be fine with either one ????