Can You Use Stabil In Diesel Fuel?

ALL Diesel Fuels, including Ultra Low Sulfur Diesel and Bio-Diesel Blends, are safe to use with DIESEL Formula STA-BIL. It can also be used in any type of diesel engine, including marine and agricultural machinery.

Can you use Stabil 360 in diesel fuel?

Because of the differences in diesel and gasoline fuel, it is not suggested to use the same stabilizer in a diesel boat engine as in a gasoline boat engine. Regulations imposed by the Environmental Protection Agency (EPA) on diesel fuel have led in the development of more specialized additives, which is another reason why different additives are required for different engines.

Diesel Formula STA-BIL is developed for engines that exclusively run on diesel fuel, including the new Ultra Low Sulfur Diesel fuels (ULSD), which are now required by the EPA to have lower sulfur content. Bio-Diesel and other Low Sulfur Diesel mixes can also benefit from the formula. Less sulfur means less lubrication and a greater demand for diesel engine protection. Diesel Formula STA-BIL is formulated to protect diesel engines from common wear and tear, such as fuel darkening.

How do you store diesel fuel long term?

According to studies, diesel fuel #2 becomes polluted and degrades within 28 days of being stored. Diesel fuel can only be stored for 6 to 12 months on average, while under ideal conditions it can last up to a year. In general, to extend the life of stored diesel fuel quality, it should be:

The term “diesel” is used in NFPA 110 “1.5 to 2 years of storage life.” According to the Standard, “Tanks should be sized so that gasoline is utilized within the storage life of the tank, or provisions should be provided to replace stale fuel with fresh fuel.” A-5-9, NFPA 110

Can you put too much STA-BIL in gas?

It all depends on the product you’re using, what you’re using it for, and the type of fuel you’re using, whether it’s gasoline or diesel.

According to STA-BIL Storage, you can safely use up to 4 times the recommended dosage of 1 ounce of fuel stabilizer per 2.5 gallons of gas, though this is not suggested. So even if you poured an entire 8 ounce bottle into 5 gallons of petrol, you should be fine.

How long does diesel last with stabilizer?

Diesel fuel does not last indefinitely. High-quality diesel fuel may be securely kept for up to 6 months without additives, which means that if you have a diesel truck in storage, you will ultimately need to apply these chemicals. Diesel fuel is a petrochemical made from carbon. The diesel will begin to oxidize if left for an extended amount of time, causing hydrocarbons to react with oxygen in the tank. Deposits form, which can harm fuel lines, injectors, and other system components. As a result, storing for more than 30 days necessitates the use of additives, notably fuel stabilizers. When using diesel fuel, the user must be proactive because stabilizers must be added when the fuel is new. As a result, when filling up your automobile, truck, or equipment, it’s essential to add Diesel STA-BIL. These additives are recommended not only for your diesel truck, but also for any other vehicles or equipment that isn’t utilized regularly. When storing fuel for long periods of time or for a season, keep all tanks full to avoid condensation. Because there is air in the tank and water in the air, bare interior tank walls will cause condensation.

Diesel fuel, like gasoline, is susceptible to damage if not stored properly, perhaps even more so. Because diesel engines are built differently from gasoline engines, they require a unique stabilizer.

Diesel fuel can collect moisture during storage, which encourages the growth of algae, fungi, and bacteria. The Environmental Protection Agency (EPA) mandated in 2006 that diesel fuel be lower in sulfur than prior versions. It was created as an environmentally friendly measure to produce less sulfur in the air and hence contribute to better air quality. Nonetheless, without correct fuel additives, it rendered diesel fuel less stable and more prone to cause problems. Overgrowth of bacteria, fungi, and algae jams up diesel engines’ fuel and fuel lines, leading them to run badly, if at all. Thermal oxidation, or when gasoline recirculates throughout the engine and heats up, is another difficulty with diesel engines. “Due to pressure and heat, “thermally stressed” gasoline can cause sludge and sediment to accumulate in the tank.

STA-BIL Diesel Formula removes water from fuel, preventing gumming, corrosion, and bacterial growth. It also aids in the reduction of oxidation due to thermal breakdown (from heating of the fuel).

When putting your diesel fuel engine or diesel equipment in storage, use Diesel Formula STA-BIL, 1 ounce per 5 gallons of fuel. For up to a year, this will keep the fuel fresh. If you need it to last more than a year, you can increase or even treble the dosage, which will last two to three years. If you’re going to use Diesel Formula STA-BIL on a regular basis, you can reduce the dosage to 1 ounce per 10 gallons of fuel.

It’s critical to keep fuel systems clean and clear of particles, i.e “Excellent housekeeping.” For the best historic cars and all vehicles, dry storage is also required. This keeps automobiles from being exposed to excessive levels of humidity, which can cause rust. It also helps avoid too much water in the gasoline tank, which causes condensation in the fuel tank and the rest of the car, as previously discussed. Stabilizers allow you to store diesel fuel for longer periods of time.

Should I keep my diesel tank full?

There are two issues here. First, because diesel fuel is a carbon-based petrochemical, it begins to oxidize as soon as it leaves the refinery, forming the sediments and gums that choke fuel. So, how long will a gallon of diesel fuel last? Without diesel fuel additives, diesel can go bad in as little as 30 days, causing deposits that can harm fuel injectors, fuel lines, and other system components, reducing fuel economy and performance.

Water is a significant issue in diesel fuel for several reasons. One is that new diesel mixes frequently include biodiesel, which has a higher water content by nature. If the water isn’t separated from the fuel, it can make its way into the fuel injectors. Pressures of up to (40,000) PSI are used in newer common rail fuel systems. If even a single droplet of water makes its way to the fuel injector through one of the new high-pressure systems, it can blow the tip-off, which is an expensive repair. This slime, like oxidation, can clog the fuel and cause long-term damage.

You can reduce the amount of water in your tank by keeping it full, which reduces the amount of condensation area in the tank and thus the amount of water. Second, diesel fuel treatments that demulsify or separate water from the fuel are available. A Fuel Water Separator (FWS) filter is found in almost all diesel engines. The performance of the body is improved by demulsification (FWS). All OEM manufacturers recommend demulsifying diesel fuel to ensure that water may be properly removed without causing damage to your engine. For fuel storage tanks, standard good fuel maintenance standards must be followed. These procedures entail the removal of water that has accumulated at the tank’s bottom on a regular basis. Because water is heavier than fuel, it will sink to the bottom, where it will be safer than in your fuel system. To avoid microbial growth, maintenance dosages of a dual phased (works in both water and fuel phases) biocide should be applied twice a year.

Should I put additive in my diesel?

While the country’s diesel fuel supply is generally reliable, it is not always consistent. When constructing and certifying diesel engines, manufacturers take into account quality swings. In general, they oppose or advise against the use of fuel additives.

“We do not advise Volvo truck owners to add additives to their diesel fuel.” If additives are required, they should be added at the gasoline supplier terminal, according to John Moore, Volvo Trucks North America’s powertrain product marketing manager.

Last year, Cummins became the first company to publicly support a fuel additive, endorsing two Power Service products, Diesel Kleen + Cetane Boost and Diesel Fuel Supplement + Cetane Boost.

“Cummins engines are designed, developed, graded, and built to certify and function efficiently on commercially available diesel fuel,” according to Josh Hahn, Cummins Filtration’s coolants and chemicals business leader. “However, Cummins acknowledges that there are low-quality fuels on the market that don’t always meet ASTM D975, and that these fuel concerns can cause a range of problems for customers, including poor lubricity, low cetane numbers, low-temperature operability issues, and injector deposits.” When pour-point depressants, wax-crystal modifiers, or de-icers are required in cold weather operations, fuel additives may be required.”

“In recent years, diesel fuel quality has become increasingly critical as engines evolve and the diesel fuel manufacturing processes change,” said Roger England, director of technical quality and materials engineering for Cummins, when the Power Service alliance was announced last year.

That’s easy to comprehend when emissions regulations tighten and engine technology advances, resulting in tighter mechanical and engineering tolerances. In summary, because fuel supply uncertainty is unlikely to improve, engine manufacturers such as Cummins are taking steps to level the playing field.

Meanwhile, Detroit Diesel says it has no additional requirements beyond current ASTM specifications, but recommends that customers take steps to ensure they are utilizing high-quality gasoline.

“While Detroit does not directly advise any brand or type of fuel additive, we recommend Top Tier diesel fuel since it addresses many of the flaws in ASTM regulations addressing diesel fuel quality,” says Jason Martin, HDEP thermodynamics and fuel map management manager at DTNA. “Top Tier is a voluntary retailer program that addresses fuel stability and lubricity, as well as detergency, water, and particles – factors that help sustain the fuel system’s performance over the engine’s lifespan, which is a contributing factor to ensuring top engine performance.”

In North America, Top Tier diesel is available from a variety of vendors. “Because shops may also offer non-additized diesel fuel or diesel that does not satisfy the Top Tier regulations,” the website warns, “always verify the dispenser.”

What happens if you use old Stabil?

All STA-BIL brand goods have a two-year shelf life once they’ve been opened if they’ve been tightly closed and stored in a cold, dry area. If you use an old bottle of STA-BIL brand, it will not damage you; however, it may not be as effective.

What is better Stabil or seafoam?

Simply replacing the air filter of the vehicle is one of the simplest ways to improve the engine’s efficiency and, as a result, the vehicle’s gas mileage. This would result in higher fuel usage and more polluting pollutants.


It can be difficult to keep the car going at full power. A decent fuel stabilizer, on the other hand, can make this task much easier. When comparing Seafoam vs Stabil, Stabil outperforms Seafoam when it comes to storing gas-powered equipment or cars. Seafoam is more expensive, but it cleans exceptionally well.

All-Weather Suitable

In cold weather, it is not recommended to use Stabil since it does not mix well with gas. This may cause gumming in the carburetor, generating unnecessary stumbling blocks in the system. In this scenario, seafoam is the better option in cold weather because it is more weather resistant.

Fit perfectly with your vehicle

Stabil isn’t the best option for frequent usage and isn’t compatible with diesel engines. It is more effective when using gas-powered equipment. Seafoam, on the other hand, is compatible with both gasoline and diesel engines.

How much Stabil do I need for 5 gallons?

Use one ounce (30mL) per 2 1/2 gallons (9.5L) of gasoline, gas/oil combinations, or ethanol blends for STA-BIL storage.

For STA-BIL 360° Protection, mix one ounce (30mL) of gasoline, gas/oil combinations, or ethanol blends with 5 gallons (19 L) of gasoline, gas/oil mixtures, or ethanol blends for storage and everyday ethanol treatment.

Use one ounce (30mL) to 10 gallons (38 L) of fuel, gas/oil combinations, or ethanol blends for STA-BIL 360° Marine storage and everyday ethanol treatment.