General RZR Discussion Amsoil 5W-50 for polaris now!! April 19, 2015 I know another oil thread LOL, i was ordering oil for my 6.6 Duramax and saw they have synthetic 5W-50 for all Polaris, only $8.95 qts with membership, they have new transmission and diff fluid also. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related