Slingshot High-Performance SS-4 Full Synthetic 5W-30 Engine Oil offers superb oil performance and protection to help improve engine durability. Its shear resistant formula with advanced additives protect against thermal breakdown and oxidation. It is engineering tested and approved for all Slingshot models. This genuine Slingshot oil delivers maximum high temperature viscosity protection and reduced friction and wear at engine start-up. Advanced additives fight sludge and varnish deposits. Engineered to maximize the life of your Polaris Slingshot: Polaris invests millions in engine development, and part of that investment is making sure its lubricants—critical to engine performance—are the right formula for your specific engine.