Keep fuel usable and safe by storing it outdoors or in a ventilated shed away from living space, in sealed, labelled containers that are nearly full but leave a small expansion space, and use the oldest fuel first. Every stored fuel is a fire hazard, so keep ignition sources out of the store, keep sand and a Class B extinguisher at the door, and never keep gasoline in a cellar or living space, where its heavier-than-air vapour collects.
Part of Fuel Siphoning & Storage
Stored fuel harms people through fire sooner than it harms itself through decay, so site, container, spill control and rotation matter as much as treatment.
A Fuel Store Fails By Fire First And Spoilage Second
Fuel kept badly harms people sooner than it harms the fuel. The risks in order are: a fire or explosion from vapour reaching an ignition source; a spill that soaks into the ground or a floor; a container that fails or leaks; and finally, slow chemical decay. Most of what follows is about the first two.
What A Safe Store Looks Like
- Location. Outdoors or in a separate ventilated shed, away from where people sleep and cook, and away from stoves, forges, generators and any open flame. Not in a basement or garage attached to a living space, because gasoline vapour is heavier than air and collects low.
- Shade and temperature. Out of direct sun. Heat raises vapour pressure and speeds ageing; swings in temperature accelerate degradation (parent article).
- Containers. Sealed, metal or approved plastic, labelled with the fuel and the date. See Approved vs. Improvised Containers.
- Segregation. Gasoline, diesel, kerosene and propane kept apart, with propane cylinders upright and outdoors.
- Spill control. A sand or soil berm or a shallow tray under each group of containers, and sand to hand.
- Firefighting. The parent article recommends a Class B extinguisher or dirt and sand; water on a gasoline fire spreads the burning fuel.
- Rotation. First in, first out, so the oldest fuel is used first. Date every container.
What You Need
- A shaded, ventilated, outdoor place that you can see from where you work.
- Containers, labels, marker, a funnel with a filter.
- Sand or dry soil in buckets, and a Class B extinguisher if one can be found.
- An inspection routine, because stored fuel degrades quietly.
Method: Set It Up Once, Check It On A Schedule
Step 1: Choose and clear the site. Remove dry grass and rubbish. Place the containers on firm ground or timber, not on bare soil that will soak up a leak.
Step 2: Fill containers carefully from a pump with the nozzle touching the rim, leaving a small expansion space at the top. The parent article advises filling containers completely to minimise air; the small space allows for heat expansion. Seal tightly.
Step 3: Label and date. Fuel type, source and date, on the container and on a list.
Step 4: Inspect on a schedule, by sight and nose: wet patches, swollen plastic, rust at seams, damaged seals, a sharp smell around the store. A leaking container is emptied into a sound one outdoors.
Step 5: Rotate. Use the oldest dates first; treat fuel that will sit for long with a stabiliser as on Fuel Stabilization & Treatment.
Common Mistakes
- Storing fuel in the house “to keep it safe.” The house is where a leak does most harm.
- No labels. Unlabelled liquids get used for the wrong job.
- Stacking all fuel in one spot beside a generator. A single fire then takes everything.
- Forgetting stored fuel. It spoils unseen.
Safety
Fuel stores burn and explode as vapour
Gasoline vapour is heavier than air, collects in low places and enclosed rooms, and ignites from a spark, hot surface or static discharge. Keep all flames, smoking, running engines and switching equipment out of and away from the store. Never test for vapour with a flame. If a fuel fire starts, smother it with sand, soil or a Class B extinguisher, not with water. Details are on Fire & Vapor Safety.
What’s Next
- Learn next: Approved vs. Improvised Containers — what to hold fuel in
- Combine with: Fire & Vapor Safety — ventilation, static and spill drills