MotoMix® is the ultimate choice of pre-mixed fuel! It's a perfect worry-free 50:1 mix of 93octane alkylate fuel with STIHL HP Ultra synthetic biodegradable engine oil. It will give your engine what it needs for performance and protection. With no ethanol, you don't have to worry about damaged seals or any other carburetor issues regular mixed fuel can cause. Comes in 950 ml ($10.95)and 4 L ($37.36) cans.