In the manual, It said that synthetic blend oil should not be used in it, so I wouldn't risk it. I would just use brand name mineral based.
10w40 summer,5w30 winter
SAE 10w30
1.9quartz, full synthetic
Use SAE 10w40 Full synthetic or conventional oil.
SAE 10w30 synthetic.
Best bet is Polaris synthetic.
SAE 10w30 full synthetic.
SAE 10w30 100% synthetic.
You can mix part synthetic oil with full synthetic oil.
Semi synthetic or synthetic blend is a combination of synthetic and conventional oil. Full synthetic oil is just that 100% synthetic oil.
Oil that comes out of the ground is not synthetic but is called crude oil. Synthetic oil is man made with synthetic compounds. They are both oil.
Per the manuel. Oil & filter should be changed at same time. (Every 50 hours or 777 miles). Remove dip stick. Put a pan under engine. Unscrew drain plug. Remove right hand side panel then door in foot rest. Unscrew oil fiter cover. Replace filter with bombideir. 10-40 wt oil for the traxter, but 5-40 for the max 5 speed. They want you to use the bombardier oil as they say it is special for the tranney and belt. (Engine and transmission uses the same oil and is changed together.) I didnt do this myself, but just had my dealer do it and it cost $105s! Think I will try it next time. Bogus Bill