How long does gas last in a 55 gallon drum ?

How long does gas last in a 55 gallon drum ? It’s smart of you to be concerned about how long gasoline can be stored before losing its capacity to start engines because doing so could harm fuel system components. In reality, you should always verify the manufacturer’s rules for fuel storage time limits before using any stored gas in a mower, tractor, or other piece of machinery or vehicle.

If you fill engines with saved gas for an extended period of time, the manufacturer may void your product guarantee. However, “ancient” gas does not necessarily mean “poor,” or tainted, gas. Learn how long does gas last in a 55 gallon drum in the next paragraphs, along with advice on how to identify and get rid of gas that has gone bad.

Gasoline that is kept properly can survive for up to six months

Gasoline typically lasts three to six months when stored properly in a labeled, tightly sealed plastic container or metal tank of the capacity advised by your fire department, even though it deteriorates and loses combustibility over time as a result of oxidation (exposure to oxygen) and evaporation of its volatile compounds (usually no more than five gallons). However, the lifespan can be shortened or prolonged depending on the gas’s purity and the presence of fuel stabilizers.

For at least six months, pure gasoline remains stable

In a sealed container or tank, petroleum-based gasoline without any ethanol will still degrade due to oxidation and volatile compound evaporation, but since pure gasoline typically undergoes these processes more gradually, you can typically anticipate it to last at least six months when stored properly. Pure gas does not absorb moisture or water like ethanol-blended gas does, which allows you to avoid moisture contamination and fuel separation problems. Pure gas is hydrophobic (also known as water-hating).

For one to three years, fuel-stabilized gasoline remains stable

Fuel stabilizers are petroleum-based additives you can apply with gasoline before storing it to decrease oxidation and volatile compound evaporation and increase the shelf life of the fuel (available on Amazon from names like STA-BIL). The stabilizer can extend the shelf life of gasoline by one to three years, depending on the product. Stabilizers are most effective when combined with fresh gasoline; they do nothing to stop the deterioration of older fuel and cannot restore clean fuel to service.

Gas with an ethanol blend can last for three months

According to the U.S. Energy Information Administration, “E10” gas, which is composed of 90% petroleum-based gas and 10% ethanol, makes up the majority of the gasoline marketed in the country (ethyl alcohol). Due to how quickly ethanol oxidizes, ethanol-blended gas usually has a shelf life of up to three months. Because ethanol is hydrophilic, or “water-loving,” it will also readily collect any moisture created by condensation in a sealed container, contaminating the fuel and eventually causing it to separate into distinct gas and ethanol layers. Gas with an ethanol percentage of 15%, 20%, or even 85% will generally have a shorter shelf life than gas with a lower ethanol content. As a result, these types of gas will go bad sooner than E10 gas.

Determine the distinction between polluted gas and old gas

Pouring a little amount of your stored gas and freshly pumped gas of the same type into two transparent glass vessels and comparing them side by side is the simplest approach to determine the state of gas. The gasoline is simply old and has likely lost its effectiveness, but it is not tainted if it is only slightly darker in color than fresh gas or smells sour.

It has been contaminated by moisture or solid byproducts of oxidation, respectively, if you notice separate layers of gas and ethanol in an ethanol-blended gas (generally, the gas layer will be darker and positioned above the lighter ethanol layer if the fuel has separated) or if the gas is noticeably discolored (such as the color of milk chocolate or rust).

Never use contaminated gas to power machinery or cars since it might encourage corrosion or leave sludge or varnish deposits (a thin, translucent brown or orange film) on the fuel system parts that can permanently harm them. The gas and the vapors it emits are still flammable and could start a fire or explode if the storage container were to become damaged over time and the gas were to leak into its surroundings, so dispose of contaminated gasoline as soon as possible. This is true even if the gas has poor combustibility.

When refueled with fresh fuel, spent fuel can be utilised

Even though the combustibility of the fuel mixture will be decreased when mixing old and new gasoline, you can still use it, albeit you may have engine sputtering or non-starting. Fill the fuel tank of gas-powered lawn equipment with a mixture of one part fresh gas and one part used gas. If you recently filled the gas tank up to three-quarters with new gas, top it off with old gas and then attempt starting the automobile. Starting a car will require more horsepower.

Final words

You know now how long does gas last in a 55 gallon drum. But be careful! Gasoline should never be disposed of in garbage cans, drains, sewers, lakes, streams, or on the ground since it can contaminate nearby water supplies and is very combustible. For the authorized disposal gasoline site, get in touch with your city’s waste management or fire department.

Once you’ve located a good location, seal the storage container, then store it there to avoid gasoline leaks while being transported. So that you can reuse the container in the future, empty the contents of the gas container into the waste container at the disposal site.