• Husqvarna ETHANOL FREE, High Octane Fuel contains a premium High Octane Fuel and Stabilizers. • OCTANE RATING: (R+M)/2 METHOD 95. • This product was specifically formulated to provide the Husqvarna equipment owner optimal 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. • Avoids costly rebuilds and downtime. • For use in all Air-Cooled 4-Stroke engines.