I don't have the factory book on this machine, the book I have is a aftermarket one. The book calls for 10-40 engine oil, is this incorrect?? Should it have 0-40 oil? Sorry for such a basic post and I did try the search button.at:
Owner's manual calls for 0W-40 Sythetic. Idaho temperatures (especially winter) may not be ideal to run 10W-40 in. For all the more oil it takes to change, I run Mobile 1 0W40 sythetic in all three of my Sportsman.
A forum community dedicated to Polaris ATV owners and enthusiasts. Come join the discussion about Rangers, Sportsmans, Scramblers, Magnums, and others. Research modifications, troubleshooting, maintenance, and more!