Sometimes that means 400 hours, sometimes around 800.
Had 4 transmission failures between the two rangers I've been running polaris gear oils in. The 3rd ranger was drained and refilled with Amsoil's reccomended oil for the trans/diff and front diff when we purchased it at 600hours. 1000 hours since purchase and no drivetrain failures at all yet. Take it for what it's worth.
FYI, from a warranty standpoint, you must change oil yearly in your machine and have it documented at the dealer. My last transmission rebuilt (2nd on that machine in 6 months) warranty complained and tried really hard to deny my claim on any technicality they could find. You can beat them back with documentation. and it's gotta come from the dealer, even though the manual says you can do it yourself.
If I changed my oil every 50 hours in all compartments, I'd spend as much on oil as I do on gas.
PRCforum is the best Polaris forum community to discuss RZR 1000, Crew 900, PRC Ranger Club, XP 900, RZR XP 4 900, RZR 570, HD, 170, RZR-S, XP 900, RZR XP 4 900, ORV, side by side, SSW and off-road information.