Qt, fix it fuel, single use treatment for poor & non-running small engines damaged by ethanol blended street gas, cleans & rejuvenates the fuel system to start more easily & operate in top condition, pre mixed ethanol free 89 octane gas oil blend, although mixed with oil at 50:1, works in any 2 & 4 cycle small engine application, fortified with mechanic in a bottle, best used as a pre treatment before introducing ethanol free small engine fuel.