Husqvarna Ethanol Free, High Octane Fuel is mixed with Husqvarna's best synthetic oil blend. • OCTANE RATING: (R+M)/2 METHOD 95. • This product was specifically formulated to provide the Husqvarna handheld owner with optimal equipment performance. • Fuel does not degrade or oxidize like pump gas. • Fuel stays fresh for years solving longer term storage needs. • Easier, more dependable starts. • Protects fuel systems & saves carburetors. • Avoids costly rebuilds and downtime. • Convenient, ready to use, no mixing required. • JASO-FD certified premium synthetic oil blend for your 2-Stroke air cooled engine.