Description STIHL MotoMix 1/2 Gallon is a patented premixed fuel, specially blended for ultimate performance. Like a sports drink for your engine, this 50:1 mixture is a combination of premium non-ethanol, high-octane motor fuel and our highest-quality STIHL HP Ultra Oil. Clean and convenient, MotoMix eliminates the hassle of mixing your own 2-stroke engine fuel while providing superior performance and lubrication. STIHL MotoMix contains no ethanol, allowing it to maintain stability for up to two years after the seal is broken - so it stays fresh in your equipment during long storage periods. Features Non-ethanol Premixed fuel Maintains stability for up to two years