If your perfect Saturday includes working on your snowmobile and getting your hands dirty, look no further than the 4T 0W-40 Synthetic Oil Change Kit for Rotax 900 ACE engine. Change the oil of your Ski-Doo yourself with our easy to use, all-in-one kit. Included: XPS Synthetic Oil, oil filter, o-rings and washer. Our XPS oils last longer and protect your snowmobile’s engine better than other oils.