My new ranger 570 is almost done with the breakin period .I don't plan on buying Polaris oil .Looking at schaeffers and reline 5w50(which is the spec weight).I have a jug of mobil1 tdt 5w40,but may use it in something else. Cost really isn't a factor being it gets changed 1 time a year , so what's the opinion on Schaeffers,redline,amsoil ect.
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