ProMax is a premix 2-cycle fuel made with higher-grade base stocks, making it the cleanest-burning 50:1 mix small engine fuel on the market. We design ProMax for the unique demands of professional outdoor power equipment. If you make your living with your tools, this is the perfect chainsaw fuel, concrete cutting saw premix, or cut-off saw 2-cycle fuel. Any high-temperature, the high-load application will benefit from using ProMax. Moreover, we pack this premixed 2-cycle fuel with 97 octane for maximum detonation protection. Higher octane is vital for air cooling systems that may be restricted by wood chips, sawdust, or sap-pitch. In addition, it's critical for jobs that require frequent starts and stops and rapidly build heat within the engine.