STIHL® MotoMix® High Performance 50:1 Fuel Mix is a patented premixed fuel that's specially blended for ultimate performance. This 50:1 mixture is a combination of premium 92 octane gasoline 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. 1-gal. can