I do not mine replacing any fluids with aftermarket stuff but with the AWD Hilliary drive fluid I would stick with the Polaris OEM stuff on that.

 

Yeah, I don't mind using OE but what I mean is if Hiliard Corp says to use 424 fluid, then hey....they're the the ones that built it....not Polaris! Polaris wants to sell their product and by Federal law, they can not void a warranty when using another brand. It's called the Moss-Magnuson Warranty Act.

 

That makes sense,put that way.