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Polaris PS-4 is a 5W-50 full synthetic motor oil built for Polaris four-cycle powersports engines in ATVs, RANGER, GENERAL and RZR machines. It uses a Polaris-specific additive package aimed at startup wear, moisture control, deposit reduction and rust protection during intermittent use. Polaris claims its Clean Engine Additive System keeps engines at least 50% cleaner than other tested oils. It suits owners who want a factory-matched oil rather than a generic automotive oil, though a single quart is a small amount for a full oil change.
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Lowest price we've seen: $19.99 on Nov 13 at Leaders RPM. Tracked across 8 stores since Nov 13.
Riders rate it very highly, with 4.9 out of 5 from 25 ratings. Owners of Polaris machines treat it as the safe factory choice for their engines.
Polaris PS-4 is a full synthetic 5W-50 four-cycle engine oil made for Polaris powersports engines. It uses a powersports-grade full synthetic base oil and a Polaris proprietary additive system. The additives protect vital engine components on startup, control moisture and help protect the engine.
The custom anti-wear additive system is made for Polaris 4-cycle engines. Off-road engines average over twice the RPMs of passenger cars and typically run at much higher temperatures. The oil is developed to handle those conditions in Polaris ATV, RANGER, GENERAL and RZR machines.
A Polaris-exclusive clean engine additive system reduces engine deposits to help maintain power and performance. In testing against other oils, it kept the engine at least 50% cleaner than all other tested oils. It also prevents oxidation in extreme temperatures and prevents rust and corrosion that can form during intermittent use.
