
The strong and distinct odour of diesel fuel can be challenging to eliminate, whether it's on clothing, in a vehicle, or from a fuel spill. While diesel is known for its lingering smell, several methods can help neutralise or minimise it. One approach is to use specific products designed to break down fuel molecules, such as Petro Buster, which is effective on various surfaces, including clothes, carpets, and concrete. Another technique involves combining hot water, ammonia, washing soda, and vinegar to clean surfaces and eliminate odours. For laundry, adding vinegar to the fabric softener dispenser during the wash cycle can help, and smaller loads are recommended for better results. Other suggestions include using Listerine to wash diesel-contaminated clothes, laying out mothballs to neutralise odours, and increasing ventilation and time for the diesel to evaporate.
| Characteristics | Values |
|---|---|
| Find the source of the smell | Identify the source of the diesel smell and fix any leaks |
| Ventilation | Open windows and doors to air out the space |
| Time | Diesel evaporates over time |
| Cleaning products | Use cleaning products like Petro Buster, Formula 409, or a mixture of hot water, ammonia, washing soda, and vinegar |
| Laundry | Wash affected clothes separately with laundry soap, baking soda, and vinegar; use a specific detergent like Listerine or a citrus-scented detergent |
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What You'll Learn

Wash clothes separately and use specific products
If you want to get rid of the diesel smell from your clothes, it's best to wash them separately from other items. Diesel is sneaky and can quickly make its way into other garments, leaving them smelling like fuel.
There are several household products you can use to wash your clothes and effectively remove the diesel odour. Here are some of the most commonly recommended methods:
Baking Soda and Vinegar
Add 1/3 cup of vinegar and 1/3 cup of baking soda to your laundry along with your regular detergent. You may need to wash your clothes more than once using this method, but it is a natural and effective way to remove the smell.
Dish Soap
Fill a tub or bucket with cold or cool water and add a degreasing dish soap like Dawn. Let your clothes soak for at least 12 hours, and then run them through the washing machine as normal. The chemicals in the dish soap will help to loosen and remove smelly oil or grease particles from the fabric.
Mouthwash
Soak the affected garments in mouthwash for 15-30 minutes. Then, throw them in the laundry as normal. If the diesel smell is stubborn, add 1 cup of mouthwash to your washing machine along with your detergent. Avoid alcohol-free mouthwash, as the alcohol is what neutralises the diesel odour.
Ammonia
Add 1/2 to 1 cup of plain ammonia to the water while washing your clothes. Put it in the water along with your soap, not directly onto the clothes. Do not mix ammonia with bleach, as it creates a toxic gas.
Fast Orange
Fast Orange is a hand wash designed to remove grease from your hands, but it can also be used on clothing. Simply add a splash of Fast Orange to your laundry alongside your detergent. It will remove both the diesel smell and any stains.
Remember to be cautious when using these methods on delicate fabrics, as some products may be too harsh for certain materials. Always test on an inconspicuous part of the fabric first.
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Seal wooden surfaces after cleaning
To neutralise the smell of diesel fuel, the first step is to identify the source of the leak and fix it. Once the spill has been cleaned up, there are several methods to reduce the smell. Ventilation and time are key factors in reducing the smell of diesel fuel, as diesel evaporates over time. Using fans can help to increase air circulation and speed up the process.
For wooden surfaces, it is recommended to use odour-absorbing materials such as baking soda, charcoal, or kitty litter to minimise the smell. If there is an oily residue, baking soda can be applied to absorb the oil. Fine coffee grounds and cat urine smell remover are also suggested for removing odours. Light sanding with fine sandpaper may be necessary to restore the wood's natural scent. However, it is important to note that once diesel has soaked into the wood, it may be challenging to completely remove the odour.
In addition to the above methods, specific products such as Formula 409, Nok-Out, Orange Glo, and Petro Buster have been recommended by various sources to effectively eliminate diesel odours. These products can be applied to the affected areas to neutralise the smell.
To seal wooden surfaces after cleaning, it is important to follow these steps:
- Ensure the wooden surface is thoroughly cleaned and dried. Remove any residue or contaminants that may interfere with the sealing process.
- Choose an appropriate sealant for the type of wood and its intended use. Sealants can include products such as varnish, polyurethane, or wax, depending on the desired finish and level of protection required.
- Follow the instructions provided by the manufacturer of the chosen sealant. This may include stirring or mixing the sealant, and applying it in thin, even coats using a brush, roller, or cloth.
- Allow the sealant to dry completely between coats. Some sealants may require multiple coats for maximum protection and a uniform finish. Refer to the manufacturer's instructions for guidance on the number of coats and drying times.
- Once the final coat has dried, inspect the surface for any imperfections or uneven areas. Lightly sand the surface with fine sandpaper if necessary, being careful not to remove too much of the sealant.
- If desired, buff the wooden surface to a shine using a soft cloth. This will enhance the appearance of the wood and create a smooth finish.
- Maintain the sealed wooden surface by regularly cleaning it with mild soap and water. Avoid using harsh chemicals or abrasive cleaning tools to prevent damage to the sealant.
By following these steps, you can effectively seal a wooden surface after cleaning, protecting it from future spills and maintaining its appearance.
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Use a specialised product like Petro Buster
If you're dealing with a strong diesel fuel smell, a specialised product like Petro Buster can be an effective solution. Petro Buster is an industrial-strength, eco-friendly remediation soap designed to break down petroleum products and the hydrocarbons associated with them. It's a surfactant "soap" engineered to break the tension between petroleum and water, allowing petroleum to "emulsify" into water immediately.
To use Petro Buster effectively, follow these steps:
- Identify the source of the diesel smell and fix any leaks or spills.
- Estimate the amount of diesel fuel involved in the spill or leak.
- Dilute one part Petro Buster with four parts water. This mixture will treat up to the same amount of diesel fuel you are remediating.
- Apply the diluted Petro Buster to the affected areas, ensuring you treat everywhere the fuel went.
- If necessary, wet the area with water to re-activate the Petro Buster and repeat the process until the smell is gone.
Petro Buster is safe to use on a variety of surfaces, including soil, concrete, asphalt, stone, brick, and water. It's also laundry and septic safe, making it suitable for removing diesel smells from clothing. Simply add a few ounces of Petro Buster Concentrate to your laundry tub, fill it with water, and soak your diesel-smelling clothing for at least an hour. Rinse the clothing with water afterward, and either hang it to dry or put it into your laundry machine to finish washing with detergent.
In addition to diesel, Petro Buster is also effective at removing stains and smells from red wine, blood, grass, cooking oils, and more. With its unique formula of enzymes and microbes, Petro Buster is a versatile and powerful tool for neutralising strong diesel fuel smells.
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Neutralise odours with vinegar, ammonia, and washing soda
To neutralise odours with vinegar, ammonia, and washing soda, you can follow these steps:
Firstly, identify the source of the diesel smell and address any leaks. If there are any soft goods, like carpets or rugs, that have absorbed the odour, you will need to spray them thoroughly, ensuring that the spray penetrates to the backing of the carpet or the middle of the cushions.
Next, wash any affected clothing separately in a bucket before putting them in the washing machine. You can use laundry soap, dawn baking soda, and borax in the wash. Add vinegar to the fabric softener dispenser, or use a downy ball if there is no dispenser. If you are dealing with rig oil, replace the baking soda with washing soda.
To specifically target ammonia odours, you can mix equal parts white vinegar and water in a spray bottle or bucket. Apply the mixture generously to the affected area and let it soak for about 10 minutes. Then, blot the area with paper towels or old washcloths. Sprinkle baking soda over the area and let it sit for 15 minutes. Finally, vacuum the area and allow it to dry.
Additionally, you can use enzymatic cleaners to break down the acids causing the smell. Spray the area with an enzymatic cleaner or clean the walls and floors with a solution of one part water and one part vinegar. Avoid using bleach, as it will react with ammonia to create chloramine, a poisonous gas.
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Find and fix the source of the smell
If you're dealing with a diesel fuel smell, the first step is to identify and address the source of the odour. This is crucial because as long as the source persists, it will continue to generate new odours. Here's a comprehensive guide to help you find and fix the source of the diesel smell:
Locate the Source
Start by thoroughly inspecting your vehicle or boat for any signs of diesel leaks. Look for "tracks" or traces of fuel that may have descended near the engine, fuel filters, or along the fuel lines. Check for any fuel puddles under the vehicle or boat. Use a flashlight to carefully inspect the engine valley, as fuel leaks can be hard to spot even during the day. Pay close attention to the injector cups, fuel injectors, and O-rings, as these components can become cracked or worn over time, creating a direct passage for fuel leaks.
Perform a Combustion Leak Test
If you suspect that coolant is entering the combustion chamber and burning off with the fuel, perform a simple combustion leak test. This is especially important if you notice a sweet smell coming from your diesel exhaust. The test will help determine if the coolant is leaking into the combustion chamber. If the exhaust gasses are present in the coolant system, the liquid will turn yellow.
Address the Leak
Once you've located the source of the leak, take appropriate action to fix it. For example, if the issue is a loose injector, tighten it up and clean any spilled fuel. If the problem is worn-out O-rings, consider replacing them or performing a fuel bowl rebuild. Addressing the leak promptly will prevent further damage to your engine and ensure the diesel smell dissipates.
Thoroughly Clean the Affected Area
After fixing the leak, ensure you clean the affected area thoroughly. Use detergent and water to scrub every nook and cranny, removing any residual diesel fuel. If the diesel has soaked into raw wood, clean it and consider using acetone after a few weeks. Proper cleaning will help eliminate any lingering odours.
Remember, finding and fixing the source of the diesel smell is essential to effectively neutralizing the odour. Take your time to locate and address the leak, and don't hesitate to seek professional assistance if needed.
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Frequently asked questions
There are several methods to neutralize the smell of diesel fuel on clothes. Some recommend using laundry soap, dawn baking soda, and borax in the wash, adding vinegar to the fabric softener dispenser. Others suggest using a combination of hot water, ammonia, washing soda, and vinegar in a clean empty gallon milk jug to clean the surface where the diesel was spilled. Washing clothes in Listerine is another option, as it is known to remove smoke smells.
To neutralize the smell of diesel fuel in a room, one can lay mothballs around the room. This method is not recommended if there are pets or children present.
To neutralize the smell of diesel fuel on hard surfaces, one can use a product called Petro Buster, which is an organic soap/cleaning compound with enzymes and microbes that can quickly remove fuel smells from surfaces such as soil, concrete, asphalt, stone, and brick.
To neutralize the smell of diesel fuel in a car, one can wash the affected area with a combination of hot water, ammonia, washing soda, and vinegar. Alternatively, one can use a product like Petro Buster, which is known to remove fuel odours from carpets in vehicles.











































