Regan Brown
The High Mobility Multipurpose Wheeled Vehicle (HMMWV), or Humvee, has been the standard light transport vehicle for the US Armed Forces since the mid-1980s. It is commonly known that diesel fuel is the standard power source for military vehicles worldwide, and most vehicles belonging to NATO countries are powered by diesel. However, some Humvee owners have experimented with alternative fuels, such as jet fuel, gasoline, old motor oil, kerosene, and waste oil. While these alternative fuels may work in a Humvee, there are potential risks and consequences to consider, such as engine failure and reduced fuel efficiency. Additionally, the use of water as a fuel additive is not recommended, as it can cause engine damage.
| Characteristics | Values |
|---|---|
| Can a Humvee burn other fuels besides diesel? | Yes, a Humvee can burn other fuels such as gasoline, old motor oil, kerosene, jet fuel, and waste oil. |
| Common alternative fuels used in Humvees | Jet A1 (a type of jet fuel), waste motor oil (WMO), used ATF (automatic transmission fluid) |
| Issues with using alternative fuels | The use of alternative fuels may lead to engine problems, especially with the injection pump. Mixing diesel with water can also cause engine issues. |
| Fuel standards for military vehicles | NATO countries have largely standardized the use of diesel fuel for their vehicles. The U.S. military adopted a single fuel source policy for all ground-based vehicles in 1988. |
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What You'll Learn
Can a Humvee run on jet fuel?
The High Mobility Multipurpose Wheeled Vehicle (HMMWV), or Humvee, has been the standard light transport vehicle for the US Armed Forces since the mid-1980s. It replaced the Willys Jeep, offering more ruggedness, load-carrying capacity, and versatility.
While diesel fuel has long been the preferred power source for military vehicles worldwide, some Humvee owners have experimented with alternative fuels. This includes jet fuel, which some users claim can be used in a Humvee without issues. One user reported using Jet A1 in their Humvee without any problems, and even observed better power and fuel efficiency compared to diesel. Another user reported a mix of jet fuel and waste motor oil (WMO) working well in their Humvee.
However, it is important to note that the use of jet fuel in Humvees is not without potential issues. One report mentions engine failures in HMMWVs resulting from the use of JP6 jet fuel instead of diesel for extended periods and under full load. The jet fuel's drier and heavier properties may have contributed to the failure of injection pump shafts.
To summarize, while some Humvee owners have successfully used jet fuel in their vehicles, it is not without risks. The official recommendation is to use diesel fuel in Humvees to avoid potential engine issues. Additionally, the use of jet fuel may void any warranties or guarantees provided by the manufacturer. Users should carefully consider the potential benefits and risks before deciding to use jet fuel in their Humvees.
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Can a Humvee run on gasoline?
The High Mobility Multipurpose Wheeled Vehicle, or HMMWV, commonly known as the Humvee, has been the standard light transport for the US Armed Forces since the mid-1980s. It is known for its ruggedness and load-carrying capacity.
Regarding the types of fuel it can use, there are varying opinions and practices. Some people claim that a Humvee can run on anything, including diesel, gasoline, old motor oil, kerosene, jet fuel, and even water. However, the consensus is that diesel is the preferred fuel for Humvees, and that using other types of fuel may not be advisable or may require significant modifications.
For example, while some Humvee owners have experimented with using waste motor oil (WMO) or vegetable oil (WVO), they have encountered issues with the viscosity of the oil causing problems with the DB-2 injection pump. To mitigate this, some users recommend using a centrifuge to clean the waste oil and blending it with diesel fuel, typically with a higher proportion of diesel in colder weather to prevent the fuel from thickening. However, even with these measures, there is still a risk of accelerated wear and reduced injection pump lifespan due to the abrasive particles and acids in waste oil that cannot be completely filtered out.
In addition, a report by the US Department of Defense (DOD) after the Desert Shield/Desert Storm operations attributed engine failures in HMMWVs to the use of jet fuel (JP6) instead of diesel for extended periods under a full load. The report found that the slightly drier and heavier jet fuel caused the injection pump shafts to shear off.
Therefore, while it may be technically possible to run a Humvee on gasoline or other alternative fuels, it is important to consider the potential risks and necessary modifications. The use of alternative fuels may impact the performance, durability, and maintenance requirements of the vehicle. As such, diesel fuel remains the standard choice for military and peacekeeping vehicles worldwide due to its reliability and ruggedness.
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Can a Humvee run on waste motor oil?
A Humvee, or High Mobility Multipurpose Wheeled Vehicle, has been the standard light transport vehicle for the US Armed Forces since the mid-1980s. Diesel fuel has long been the preferred power source for military vehicles worldwide, and vehicles belonging to NATO countries are largely powered by diesel.
However, some people have experimented with using alternative fuels in their Humvees. One person reported using a mix of 80% waste oil to 20% diesel fuel in their M35A2 truck and having no problems for three years. They did note that they changed the fuel filler twice a year and used a higher diesel mix in cold weather to prevent the fuel from jelling in the tank. Another person reported using a mix of 50% waste motor oil and 50% diesel fuel in their Humvee without any issues.
It is important to note that using waste motor oil in a Humvee may shorten the life of the injection pump due to the acids and fine metal particles present in the oil, even when it is cleaned using a centrifuge. Additionally, the DB-2 injection pump is not designed for the thicker viscosity of waste motor oil, which can lead to engine failure.
Some people have also reported using other alternative fuels in their Humvees, such as vegetable oil, jet fuel, and gasoline. However, it is important to note that using alternative fuels may void any warranties or guarantees on the vehicle and may not be legal in all jurisdictions. It is always best to consult a qualified mechanic before using any alternative fuel in a vehicle.
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Can a Humvee run on kerosene?
Military Humvees, or High Mobility Multipurpose Wheeled Vehicles (HMMWVs), are designed to run on diesel fuel. Diesel engines offer better fuel economy than gasoline engines, extending the operational range of Humvees and reducing the need for frequent refuelling—a critical advantage in tactical situations. Diesel engines also deliver higher torque output at lower RPMs, making them well-suited for off-road capabilities and traversing challenging terrain.
However, in certain situations, Humvees can operate on alternative fuels like kerosene. JP8 (Jet Propellant 8), a kerosene-based jet fuel, is widely used by the military and can be used as a substitute for diesel in Humvees, especially when diesel is unavailable. This fuel flexibility simplifies logistics and enhances operational adaptability. While kerosene can be used in Humvees, it lacks the lubricating properties of diesel, which can lead to increased wear and tear on fuel pumps and other engine components over time. Therefore, additives may be required when using kerosene to maintain engine health and performance.
The use of kerosene in Humvees is not limited to military applications. Some civilian Humvee owners have reported successfully running their vehicles on kerosene, although this practice may require additional maintenance and is not recommended for long-term use without additives. The use of kerosene in civilian vehicles may also have legal implications, as it can be considered tax evasion in certain jurisdictions.
In recent years, the military has explored hybrid and electric Humvee prototypes to improve fuel efficiency, reduce emissions, and enable silent operation. These initiatives reflect a broader trend towards standardising fuel sources across military vehicles and equipment, simplifying supply chain logistics and reducing costs.
In summary, while military Humvees are primarily designed to run on diesel fuel, they can operate on kerosene-based jet fuel like JP8, especially in austere environments where diesel is scarce. However, kerosene's lack of lubricating properties necessitates the use of additives and more frequent maintenance to maintain engine health. The choice of fuel ultimately depends on the specific operational requirements and conditions faced by Humvee operators.
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Can a Humvee run on a mix of diesel and jet fuel?
The High Mobility Multipurpose Wheeled Vehicle (HMMWV), or Humvee, has been the standard light transport for the US Armed Forces since the mid-1980s. It is known for its ruggedness and load-carrying capacity.
While diesel fuel has long been the preferred power source for military vehicles, some Humvee owners have experimented with alternative fuels to cut costs. Some have reported success with using a mix of diesel and jet fuel, specifically Jet A1, which is JP8 with an additive to prevent water from freezing at high altitudes. However, it is recommended to add a lubricant when using Jet A1, as it can cause a 5% power loss and a 5% loss in fuel economy.
One user reported running their Humvee on a mix of 10-15 gallons of waste motor oil (WMO) and 35-40 gallons of jet fuel without any issues. Another user reported running their vehicle on an 80% WMO and 20% diesel mix during the summer months, only changing the fuel filler twice a year.
It is important to note that using alternative fuels may void warranties and potentially cause engine damage over time. A report by the DOD after the Desert Shield/Desert Storm operations found that extended use of JP6 jet fuel in HMMWVs and CUCVs resulted in engine failures due to the higher viscosity of jet fuel compared to diesel. Therefore, it is recommended to use diesel fuel or authorized alternatives like JP8 for Humvees to ensure optimal performance and longevity.
In conclusion, while it may be possible to run a Humvee on a mix of diesel and jet fuel in the short term, it is not advisable as a long-term solution due to potential engine issues and reduced performance.
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Frequently asked questions
Yes, according to some sources, a true Humvee can run on diesel, gasoline, old motor oil, kerosene, jet fuel, and even water, although the latter is not recommended as it can damage the engine.
Diesel is the standard fuel for Humvees and has been the favorite power source for military and peacekeeping vehicles worldwide due to its ruggedness and longevity.
Some alternative fuels that have been used in Humvees include waste oil, jet fuel, and gasoline. However, it is important to note that using alternative fuels may require additional steps such as adding lubricants or changing filters.
