Pre-blended for outdoor power equipment - Fuel provides the perfect fuel for all 4-cycle, air-cooled engines requiring a 50:1 mix For use in 4-cycle engines, Value Bundle of 4 Specifically for portable gas-powered equipment - convenient, saves time and delivers superior performance Reduced aromatics and consistent vapor pressure lead to a cleaner burning fuel with the addition of a full synthetic oil and the guaranteed correct mix ratio for your equipment; Extends equipment life and ensures proper break-in for new equipment Easier start-up, increased trigger response and smootheridling with no smoke or plug fouling.