Ready to change oil in my 570 ranger.Have Schaeffers 5w50 Racing 9000 series ($7.50) or do I sell it and use the new Amsoil 5w50 UTV for $9.00 per quart. Not sure if Ams is a better product? Not worried about the little difference in price. Was thinking maybe better to use the Amsoil(5w50) ,so I can stay with the same product line if I went with the Amsoil 0w40 for winter use. I change in mid-fall and late spring. Not sure switching between the schaeffers and amsoil is the best idea. Fire away.
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