PS-4 Advantage Polaris PS-4 is made specifically for Polaris powersports engines to maintain peak performance longer than automotive and other aftermarket powersports oils. Our Polaris proprietary additive system is formulated using the latest lubricant technology to protect vital engine components on startup, control moisture and deliver maximum engine protection for Polaris off-road vehicles. Only Polaris lubricants are specially developed with our engines to handle the intense conditions and high-performance requirements demanded by Polaris ATV, Ranger, General and RZR riders worldwide. Full Synthetic Formula: PS-4 uses a superior powersports grade full synthetic base oil to deliver better performance and engine protection. PS-4 engine oil was developed specifically for Polaris 4-cycle engines with a custom antiwear additive system to let riders confidently and safely push their machines to the limit. Off-road engines average over twice the RPMs of passenger cars and typically run at significantly higher engine temperatures. New Custom Clean Engine Additive System: New Polaris exclusive clean engine additive system was formulated to reduce engine deposits to help maintain peak power and performance. Tested against aftermarket products it was proven to keep the engine at least 50% cleaner than all other tested oils! The custom additive system also prevents oxidation in extreme temperatures and prevents rust and corrosion that can form during intermittent use. This Accessory is Designed to Fit the Following: 2019 ACE 500 --, 2019 ACE 570 EPS, 2019 ACE 900 XC Edition, 2019 General 1000 EPS, 2019 General 1000 Deluxe EPS, 2019 General 1000 Premium EPS, 2019 General 1000 Ride Command Edition EPS, 2019 General 1000 EPS Hunter Edition, 2019 General 1000 EPS Limited Edition, 2019 General 4 1000 EPS, 2019 General 4 1000 EPS Ride Command Edition, 2019 Ranger 500 --, 2019 Ranger 570 --, 2019 Ranger 570 EPS