Using old gas in a generator can lead to various operational issues, especially if the gas has degraded over time. Gasoline tends to deteriorate due to oxidation and evaporation of volatile components, which can result in the formation of gums and varnishes that clog fuel filters, carburetor jets, and fuel lines. When old gas is used in a generator, it may cause difficulties in starting the engine or result in poor engine performance. Symptoms such as hard starting, rough idling, engine stalling, and overall reduced power output may occur due to incomplete combustion or insufficient fuel delivery caused by degraded gasoline.
If you encounter a generator that has old gas in it, the first step to address the issue is to drain the old gasoline from the fuel tank and fuel lines. It is essential to dispose of the old gas properly according to local regulations. Once the old fuel is removed, the fuel system components such as the fuel filter and carburetor should be inspected and cleaned thoroughly to remove any residues or deposits that may have accumulated. This process helps ensure proper fuel flow and combustion efficiency when fresh gasoline is added to the generator.
An alternative approach with an old gas generator is to use a fuel stabilizer when storing the generator for extended periods. Fuel stabilizers help prevent gasoline from degrading by slowing down oxidation and maintaining its chemical composition over time. Before using the generator again, it is advisable to replace the old gas with fresh gasoline treated with a stabilizer to avoid potential starting and performance issues associated with degraded fuel.
Using old gas in a generator can indeed cause starting problems and affect overall engine performance. As gasoline ages, its volatility decreases, making it harder to ignite and burn efficiently in the engine. In addition to difficulties in starting, old gas can contribute to engine misfires, erratic operation, and potential damage to engine components due to incomplete combustion and fuel system contamination. Therefore, it is recommended to use fresh gasoline and regularly maintain the fuel system to ensure reliable operation and longevity of the generator.