The Polaris PS-4 Engine Oil Synthetic Change Kit includes 1 quart of synthetic engine oil specifically designed for Polaris vehicles. Made by the Polaris brand in the United States, this kit is compatible with the PS-4 model and is not a vintage or universal fitment part. It is intended for regular maintenance and is not a performance part. Ideal for ATV, side-by-side, and UTV enthusiasts looking to ensure their vehicles are operating with high-quality engine oil.