SEF 2-cycle fuel is an ethanol-free fuel mixed with synthetic oil, formulated for 2-cycle engines requiring a 40:1 or 50:1 mix and designed to ensure the long-life durability of your small engine. VP Racing Fuels Engineered 2-Cycle fuel 1-Quart 40:1 & 50:1 Ethanol Free Pre-Blended 2-Cycle Fuel | 8641