Choosing the Right Gas Cans for Emergency Fuel Storage

When it comes to preparing for emergencies, most people think of water, food, and flashlights—but fuel is just as critical. Whether you’re prepping for hurricanes, power outages, or unexpected road closures, having fuel stored safely can keep your generator running, your car moving, or your tools working when you need them most. But choosing the right gas cans for emergency fuel storage isn’t just a matter of grabbing any red container off the shelf. There’s a lot more to it—materials, capacity, safety features, even legality.

Let’s explore the essential points you should know before picking out the right gas can for your needs, plus some handy comparisons and considerations.

Understanding the Different Types of Gas Cans

There’s no one-size-fits-all solution when it comes to gas cans. They vary in size, design, purpose, and the type of material they’re made from. Here’s what sets them apart.

Plastic Gas Cans

• Lightweight and often less expensive than metal counterparts
• Rust-proof and less likely to dent
• Usually include a built-in spout with spill-reducing features
• May deteriorate over time from UV exposure or chemical breakdown
• Approved versions should have flame mitigation devices

Metal Gas Cans

• Highly durable and less likely to degrade in extreme temperatures
• Better suited for long-term storage
• Often used in military or industrial applications
• Heavier and usually more expensive
• Can rust if not maintained properly

Jerry Cans

• Iconic design with a flat, rectangular shape
• Typically metal, but available in plastic
• Designed for easy stacking and storage
• Often have a secure cap and spout for pouring
• Popular for off-grid storage or vehicle use

DOT-Approved Cans

• Meet U.S. Department of Transportation standards
• Suitable for transporting fuel in vehicles
• Feature locking caps and secure nozzles
• Required for commercial or on-the-road fuel transport
• Generally more expensive but worth it for safety and legality

Key Features to Look For in an Emergency Gas Can

Not all gas cans are created equal, especially when the goal is emergency preparedness. Some features are essential if you want your storage system to be dependable and safe.

Spill-Proof Nozzles

• Reduces the risk of dangerous spills
• Helps control flow rate when pouring
• Makes refueling equipment easier during high-stress situations

Flame Mitigation Devices (FMDs)

• Found in most modern cans
• Prevents flame or sparks from igniting fuel vapors inside the can
• Crucial for storing gas in hot or volatile environments

Color Coding

• Red is for gasoline
• Yellow is for diesel
• Blue is for kerosene
• Helps avoid dangerous fuel mix-ups

Vent Caps

• Older cans may have separate vents
• Newer versions often use internal venting for safety
• Allows smoother fuel flow without glugging

Capacity

• Most commonly available in 1 to 5 gallons
• Larger cans are better for storing backup fuel
• Smaller cans are easier to handle and pour from

Material Ratings and Approvals

• Look for cans approved by EPA, CARB (California Air Resources Board), or DOT
• These certifications ensure the can meets standards for emissions, safety, and transport

Safe Storage Practices for Emergency Fuel

Buying the right can is only part of the equation. Storing fuel safely is where many people make mistakes. Gasoline is highly flammable, and poor storage can turn your prep into a hazard.

Choose a Cool, Ventilated Area

• Avoid storing in direct sunlight or enclosed spaces like basements
• A detached garage or outdoor shed with airflow is ideal
• Keep away from pilot lights, sparks, or open flames

Use Stabilizers for Long-Term Storage

• Fuel can degrade over time
• Adding a fuel stabilizer helps preserve gas for up to a year or longer
• Important for keeping emergency reserves functional when it counts

Rotate Stored Fuel Regularly

• Don’t let fuel sit for years unused
• Use it in your lawnmower or vehicle and replace it with fresh fuel
• Keeps your supply usable and avoids waste

Label and Date Your Cans

• Helps track how old your fuel is
• Ensures you don’t accidentally use stale gas
• Reduces confusion during high-pressure moments

Store Cans Upright and Secure

• Keeps pressure balanced
• Prevents leaking or tipping
• Use shelving or tie-downs if stored in a vehicle or on a rack

Comparison Table: Plastic vs Metal Gas Cans

Feature	Plastic Gas Cans	Metal Gas Cans
Weight	Lightweight	Heavier
Durability	Prone to UV damage	Long-lasting
Cost	Budget-friendly	More expensive
Rust Resistance	Won’t rust	Can rust over time
Spout and Nozzle Options	Integrated nozzles common	May require additional fittings
Regulatory Approvals	Many are EPA/CARB compliant	Often meet DOT specs too
Best Use	Everyday fuel needs	Long-term or rugged storage

Common Mistakes When Choosing a Gas Can

Even seasoned preppers make mistakes with fuel storage. Avoid these pitfalls to keep your setup efficient and safe.

Buying the Cheapest Option

• Low-quality cans may leak, degrade, or lack proper safety features
• Prioritize safety over cost for emergency readiness

Ignoring Regulations

• Transporting gas in non-compliant containers can get you fined
• Worse, it can be dangerous to others on the road

Mixing Fuels in the Wrong Containers

• Using a red can for diesel or vice versa is not just confusing—it can damage your equipment
• Stick to proper color coding

Overlooking the Need for Stabilizers

• Gas breaks down faster than you think
• If you’re storing it for more than a month or two, you need stabilizer

Storing Indoors Without Ventilation

• Gasoline fumes are toxic and flammable
• Never store fuel in your home, basement, or attached garage

Practical Questions Replaced

Instead of FAQs, here’s a quick-reference guide to common questions answered directly within the text for smooth reading:

Where should I store emergency fuel?
In a cool, ventilated, and secure area like a detached garage or outdoor shed—never indoors.

How long can gasoline be stored?
Up to one year with stabilizers. Without additives, gasoline can degrade in a few months.

Do I need to rotate stored fuel?
Yes. Use and replace it every few months to a year, depending on climate and storage conditions.

Are metal cans better than plastic?
Each has its pros. Metal is more durable, while plastic is easier to carry and won’t rust.

Is it legal to store fuel at home?
Yes, but limits apply. Most municipalities restrict home storage to around 25 gallons. Check local rules.

Can I use old gas cans from the shed?
Only if they’re in good condition and meet current safety standards. Replace cracked or outdated cans.

Is it okay to keep gas in my car’s trunk?
Temporarily, yes—especially in a DOT-approved can. But long-term storage in a vehicle is dangerous due to heat buildup and fumes.

Conclusion

Choosing the right gas can for emergency fuel storage might seem like a small detail, but it’s one of those critical choices that make a huge difference when the lights go out or the roads shut down. You’re not just buying a container—you’re investing in peace of mind, safety, and reliability.

Focus on quality materials, certified safety features, and proper storage techniques. Match the can to your actual use case—whether you’re fueling a backup generator, storing for storm season, or carrying gas on the road. And always treat fuel with respect. It’s powerful, useful, and potentially dangerous if ignored.

When done right, fuel storage isn’t just prepping—it’s smart living.