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Is It Safe to Store Generator Fuel in a Shed?

April 5, 2026

Quick Answer

Short Answer: Storing generator fuel in a shed can be safe if done properly, but improper storage can lead to severe consequences, including explosions and fires.

Safety Precautions for Generator Fuel Storage

It’s essential to understand that generator fuel is highly flammable and requires careful handling. When storing fuel in a shed, ensure the area is well-ventilated to prevent the accumulation of vapors. A good rule of thumb is to place the fuel storage container at least 20 feet away from any open flames, sparks, or hot surfaces.

Choosing the Right Fuel Storage Container

Select a container specifically designed for storing generator fuel, such as a steel or fiberglass tank with a tight-fitting lid. The container should be labeled and dated to ensure you use the oldest fuel first. A 30-gallon container is a good starting point for most residential generator applications. Make sure the container is compatible with the fuel type (e.g., gasoline, propane) and the generator.

Long-Term Storage Techniques

To minimize the risk of fuel degradation and contamination, store the generator fuel in a cool, dry location. Avoid exposing the fuel to direct sunlight or extreme temperatures. If you plan to store fuel for an extended period, consider adding a fuel stabilizer (such as Sta-Bil) to prevent degradation and phase separation. For long-term storage, it’s recommended to drain the fuel from the generator and store it in a separate container to prevent moisture buildup and bacterial growth.

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