What Happens to Fuel Without Stabilizer Over Time?

Fuel Breakdown

Fuel left without stabilizer undergoes a natural process of degradation, resulting in the formation of gum, varnish, and water. This occurs due to the presence of sulfur and other impurities in the fuel, which react with oxygen to form insoluble deposits. As the fuel ages, these deposits can clog fuel filters, fuel injectors, and engine passages, leading to decreased engine performance and potentially causing engine damage.

Storage Considerations

When storing fuel for extended periods, it’s essential to consider the effects of degradation. For gasoline, the addition of a fuel stabilizer can help to slow down the breakdown process. The recommended dosage for fuel stabilizer is typically 1 ounce per 5 gallons of fuel. For diesel fuel, the addition of a biocide can help to prevent bacterial growth, which can cause fuel to break down more rapidly. The storage tank should be kept in a well-ventilated area, away from direct sunlight and heat sources.

Best Practices for Generator Storage

Generators should be stored with the fuel tank at least 1/4 full to prevent condensation from accumulating in the tank. If the generator will be stored for an extended period, it’s recommended to drain the fuel tank and replace it with fresh fuel when the generator is next used. This will help to prevent the fuel from breaking down and reduce the risk of engine damage. It’s also essential to follow the manufacturer’s recommendations for generator storage and maintenance to ensure optimal performance and longevity.