Formulated with premium additives, and semi-synthetic base oils, Husqvarna XP+ has been tested and approved for use in all Husqvarna 2-Stroke engines. Low operating temperature: Unique chemistry specifically formulated to provide lower operating temperature, reducing the risk of engine failure. Verified engine formula: Engineering approved lubricant guaranteed to keep your power equipment running like new. JASO-FD certified: Meets industry’s highest standard for 2-stroke oil performance. Clean engine formula: A clean engine formulation extends engine life and minimizes downtime by reducing the risk of piston ring sticking. Husqvarna XP Professional Performance 2 Stroke Mix 12.8 oz. Bottle