Husqvarna Oil Guard ™ is a semi-synthetic 2-Stroke oil blend specifically designed for power cutters. The unique color regulates Husqvarna’s patented Oil Guard ™ system, eliminating piston and cylinder failures caused by lack of lubrication. Husqvarna Oil Guard ™ 2-Stroke oil is also ideal for other 2-stroke power equipment used in tough, dirty conditions. Husqvarna Oil Guard ™ 2-Stroke oil formulation also contains fuel stabilizer to help reduce the risk of engine failures caused by spoiled gas. Low operating temperature. Contains fuel stabilizer. Mix with 5 gallons of gas (50:1).