Full synthetic PS-4 formula delivers the highest level of performance and engine protection. The custom additive system was formulated by Polaris to prevent oxidation in extreme temperatures, prevent rust and corrosion, and reduce critical engine component wear. This custom oil change kit includes every thing needed to change your oil. This kit includes two quarts of PS-4, a 2540086 Polaris oil filter and convenient single use Edward's Motorsports & RVs funnel.