How Long Is Diesel Fuel Stable?

In temperatures of 85 degrees, diesel fuel can last for 6 to 12 months. The fuel will then start to react with the oxygen in the tank. Diesel may become sticky as a result of this interaction. If diesel turns sticky, it can block fuel filters, causing engine problems. The sticky fuel will not burn properly, resulting in a film of soot and carbon on the engine’s inside. One possibility is to apply oxidation-resisting stability treatments.

Degradation of diesel fuel can also be caused by other sources. Fungus can grow in the presence of water in the fuel. Fungi can produce organic chemicals that break down diesel molecules. The gumming process can be accelerated by high temperatures. When metals like zinc and copper come into contact with diesel fuel, they can trigger a chemical reaction. Certain chemicals have been shown to hasten the aging process.

What is the shelf life of diesel fuel?

Maybe you haven’t started the hot rod in the garage in a couple of years. Maybe you haven’t used your lawnmower or snow blower since storing them for the season.

These applications that run on gasoline are all meant to make our lives easier and more fun. However, none of them will help you if the gasoline they’re utilizing is contaminated.

If gasoline is stored for too long, it might lose critical volatile chemicals due to evaporation, according to Richard Stanley, a former chemical engineer for Texas-based Fluor Corporation and Ascent Engineering.

“If you leave gasoline alone for a long time, it just doesn’t behave the way you expect it to,” Stanley explained.

Gasoline has a three-month shelf life on average, but diesel can be stored for six to twelve months if kept cool and dry. Experts agree that when keeping wasted gas for more than a year, fuel stabilizer additives should be used, and that acquiring new gas every six months (at the start of both summer and winter) is a solid rule of thumb.

That’s a lot of reminders to add to your already overflowing to-do list. There is, however, a superior fuel option available.

“While gasoline and diesel fuel deteriorate over time, propane does not,” he explained. “Unlike other fuels, it won’t decay through natural processes.” That’s why propane is an excellent choice for applications like emergency generators, which are only used once in a while.”

Propane is also ideal for lawn equipment, in addition to standby generators. The days of running your gas tank to empty before putting it away for the winter are long gone. You may simply clean up your lawn mower and store it until next spring with propane. When it’s time to clean things up, you’ll be relieved to know that your propane hasn’t gone bad. Consider these mower manufacturers if you’re ready to switch to a propane-powered mower.

Is 10 year old diesel fuel still good?

It’s an age-old question for diesel truck drivers and anyone else who drives a diesel-powered vehicle. ‘Does diesel fuel have a shelf life?’ In actuality, there is no such thing as an expiration date for diesel, but the longer you store it, the worse it performs.

In reality, keeping diesel without properly treating it can cause a slew of problems, not just for the fuel but also for any vehicle into which you chose to put it later. We’ll go over exactly what happens to untreated diesel fuel when it’s stored for a long period, as well as how you may avoid these bad consequences by simply treating the diesel before it’s stored.

Diesel fuel’s performance deteriorates when it sits in storage for extended periods of time. When the fuel reaches the final stages of the process, we call it “diesel fuel gone bad.” It may be too late to save your stored diesel fuel if you notice these things occurring to it. However, there are a few things you can do to extend its life, which we’ll go into later.

  • As a result of being exposed to environmental variables, chain reactions occur: Light, water, and heat are the most prevalent environmental variables that have a negative impact on diesel fuel. If the diesel fuel is stored in a location where any of these things might affect it, the molecules in the fuel will produce chain reactions that will cause the fuel to slowly but steadily change from an oil to a varnish.
  • The gasoline darkens, and the gums get swollen: As a result of the chain reactions that occur between environmental variables and the molecules of diesel fuel, the fuel thickens and darkens, turning into more of a gum or sludge.

This process alters the molecular structure of diesel fuel, and because most modern diesel fuels do not contain the same amount of sulfur as older diesel fuels, bacteria begin to thrive in the fuel, forming biomass. This can result in acids that completely degrade the fuel over time.

  • The sludgy fuel won’t burn properly, resulting in black smoke: This thicker, darker dieselfuel won’t run as smoothly as a diesel fuel that hasn’t been influenced by external factors, resulting in black smoke and engine sputtering, which is never good for your car.
  • Internal vehicle damage due to lubricity: Because this diesel fuel no longer has the lubricity it once did, the acidic nature and thickness of the fuel will begin to negatively affect the fuel pump, diesel injectors, and engine, and you may not be able to start your engine if the problem is severe enough.

You may be wondering if there is any solution that will allow you to keep diesel fuel without it becoming a sludgy mess now that you know what it means when you hear it has gone bad.

The solution is significantly more straightforward than you might have assumed. You can ensure that your stored diesel fuel is safe at all times by using a diesel fuel stabilizer. Although there are numerous brands and formulations to pick from, we recommend Opti-Lube, which is the world’s #1 rated additive that more than doubles the shelf life of diesel fuel.

Despite the fact that diesel fuel does not have a specific expiration date, the performance of stored fuel might be harmed over time if improper storage and additives are not used. If you intend on storing fuel or not driving your truck over the winter, it’s important to use a reliable additive like Opti-Lube and take precautions before it’s too late.

We at Gem State Diesel understand the damage that gummed-up diesel fuel can cause to a vehicle, which is why we’ve decided to offer this knowledge and show you how we maintain our fuel working at its best no matter what. After all, it’s always better to be cautious than sorry, especially when dealing with something as precious and impressive as a diesel engine.

Does diesel go bad after 5 years?

Diesel normally lasts six to twelve months at temperatures over 30 degrees Celsius. When oxygen reacts with the fuel, silt and gum accumulate over time, so make sure there’s as little air in the tank as possible when filling it up. Expired or ‘rotten’ diesel produces less power and can cause soot build-up in engine parts, causing damage to your car, mower, or truck. 5

Diesel, like gasoline, has an expiration date. It’s critical to store diesel fuel in a container that keeps heat, water, and air out, as this can hasten the expiration process. Diesel can last up to twelve months in ideal conditions, but you can extend its life even further by using a diesel fuel stabilizer. 6

Does diesel degrade over time?

So, under these circumstances, how long does diesel fuel last? “Diesel fuel can be stored for 6 to 1 year without substantial fuel degradation if kept clean, cold, and dry,” according to Exxon. Diesel fuel can be stored for more than a year under specific conditions, according to Chevron:

  • Second, acceptable fuel quality and stability were obtained by using additives such as biocides, stabilizers, and additive packages that promote lubricity, improve the Cetane number, and offer detergents to keep fuel systems clean.
  • Finally, the fuel was tested on a regular basis, maintained, and polished as needed using portable filters.

As a result, the answer to the question “how long does diesel fuel last” is “it depends.” However, with good fuel stability achieved by correct storage and the use of diesel fuel treatments such as Diesel STA-BIL, you can combat fuel degradation for a long time while keeping expenses low and under control.

Can I use old diesel fuel?

It’s unlikely to take as long as you imagine. After you put fuel in a container, it only takes a few months for the quality to deteriorate — much less if the fuel is tainted in any way.

Petrol has a six-month shelf life when stored in a sealed container at 20 degrees Fahrenheit, and just three months when stored at 30 degrees Fahrenheit. The more heat it is subjected to, the faster it will blow up.

You’ll be able to maintain the container for even shorter time if it’s not well sealed, and there’ll be an elevated fire risk owing to combustible vapours escaping.

Diesel, on the other hand, can be utilized for six to twelve months before becoming ‘gummy,’ which can clog filters and cause engine problems if used.

How can you tell if diesel fuel is bad?

Depending on whether it’s bio-diesel or distillate ULSD diesel, you can only expect diesel fuel to be used for 6 to 12 months. If you’re not sure, here are some signs to look out for.

What is the longest lasting fuel?

Getting ready for an emergency might be difficult. It’s difficult to maintain emergency supplies fresh and useful when you don’t know when calamity may strike. It’s critical to know which fuels have the greatest shelf life when you prepare and begin to store fuel. It is preferable to use fuels with an unlimited shelf life whenever possible.

What are the fuels with the longest shelf lives? Propane, alcohol, wood, and charcoal are all suitable emergency storage fuels that can be kept indefinitely.

Which fuel has the longest shelf life and will fulfill my demands is the more appropriate question. Consider the following example:

During a power outage, you can use the following fuels to provide emergency alternate heating for your home:

Alternative fuel sources for emergency cooking without electricity include:

Fuel shelf life is just one of the elements to consider when deciding which fuel is ideal for your emergency preparedness. A fundamental aspect should be the ability to safely store the gasoline. To learn the best techniques for storing emergency fuels, go to How to Store Fuels Safely for Emergencies.

If all other parameters are equal, it makes sense to store the fuels that have the longest shelf life and are the most stable in storage. In this piece, we’ll look at the useable life of common fuels that are kept on hand for emergency situations.

How Long Can diesel be stored in a jerry can?

Similarly, if the container isn’t well-sealed, the gasoline will decay faster. Diesel will last between six and twelve months in a portable container before it starts to deteriorate. However, just like gasoline, how it’s stored might determine how long it lasts.

How long before fuel goes off?

The amount of time that fuel will be usable in your gas tank is determined on the type of fuel. Regular gasoline has a three- to six-month shelf life, whereas diesel can last up to a year before degrading. Organic-based Ethanol, on the other hand, can lose its combustibility in as little as three months due to oxidation and evaporation.

It can be difficult to keep track of the age of the fuel in your tank. It begins its existence at a refinery, where it may have been held indefinitely before being transferred. This time frame could range from a few days to a few weeks. It’s possible that the fuel will sit for a long period of time once it arrives at a gas station, depending on how busy that specific gas station is. It’s likely that the gas in your tank was pumped more than a month ago.