Does Gas Go Bad In A Gas Can

Does Gas Go Bad in a Gas Can? A Comprehensive Guide to Gasoline Storage

So, you've got a gas can sitting in your garage or shed. But how long does that gasoline really stay good? The short answer is: yes, gasoline does go bad in a gas can, and understanding why and how is crucial for both your equipment and your safety. This article explores the lifespan of gasoline, the factors affecting its deterioration, and how to best store it to maximize its usability.

Gasoline isn't just a single substance; it's a complex mixture of hydrocarbons that are volatile and prone to oxidation. Over time, this leads to a degradation in quality, rendering it less effective and potentially harmful to your engines.

What Happens When Gasoline Goes Bad?

Several key changes occur when gasoline deteriorates:

• Evaporation: The lighter hydrocarbons in gasoline evaporate first, leaving behind a more viscous and less volatile mixture. This reduces the fuel's overall energy content and can cause engine problems.
• Oxidation: Exposure to air triggers oxidation, leading to the formation of gums and resins. These sticky substances can clog fuel filters, carburetors, and fuel injectors, leading to poor engine performance or even complete failure.
• Water Contamination: Moisture can seep into your gas can, leading to the formation of condensation and eventually water in the fuel. Water in gasoline can severely damage engines, causing rust and corrosion.
• Polymerization: This process involves the formation of heavier molecules that can further contribute to gum and varnish build-up.

How Long Does Gasoline Last?

The shelf life of gasoline depends on several factors:

• Storage Conditions: Heat, light, and air exposure accelerate the degradation process. A cool, dark, and airtight environment is ideal.
• Type of Gas Can: Using a properly sealed, high-quality gas can made of approved materials is crucial. Avoid rusty or damaged cans.
• Fuel Additives: Some gasolines contain stabilizers that extend their shelf life. However, even stabilized fuel won't last indefinitely.
• Initial Quality: The quality of the gasoline itself will influence how long it remains usable.

As a general rule, gasoline stored under ideal conditions might remain usable for 3-6 months. After that, its quality will start to significantly degrade. However, under less-than-ideal conditions, it could go bad much sooner. You should never use gasoline that is visibly cloudy, discolored, or contains sediment.

Tips for Proper Gasoline Storage:

• Use a high-quality gas can: Invest in a sturdy, airtight gas can specifically designed for fuel storage.
• Store in a cool, dark place: Avoid direct sunlight and extreme temperatures.
• Fill the can completely: Minimize air exposure within the can to reduce oxidation.
• Add a fuel stabilizer: This can significantly extend the shelf life of your gasoline.
• Label the container: Clearly label the container with the date of filling.
• Regularly inspect your gas: Check for discoloration, sediment, or any other signs of degradation.

By following these guidelines, you can help ensure that your stored gasoline remains usable for as long as possible and prevents potential damage to your equipment. Remember, safety first! Always handle gasoline with care and follow all relevant safety precautions. Don't hesitate to dispose of old gasoline properly if you're unsure about its condition.