My Polaris RZR calls for Polaris PS4 oil. Supposedly it has an extra additive that protects the lifters and isn't found in the Mobile 1 that many use. Amzoil is supposed to have the additive but it costs more than the PS4. Or so they say. The problem is getting GOOD information about what's what. It's very difficult to find out if this is true to just BS to sell oil.
