
Diesel fuel is a widely used fossil fuel that can leave a foul odour and tough stains when spilled. It is important to know how to clean up spills promptly and effectively, not only to avoid hazards and legal issues but also to prevent damage to property. There are several methods to clean diesel fuel spills, depending on the surface and the size of the spill. For smaller spills, a liquid solution can be applied generously to the spill, scrubbed, and washed with water. For larger spills, an absorbent powder can be used. To remove diesel odours from hands, a mixture of detergent, salt, and lemon juice can be used, or a mechanic's degreasing hand wash. For diesel odours on clothes, a degreaser can be used, followed by a scented detergent. Alternatively, the garment can be soaked in cold water and dish soap for 12 to 24 hours, then washed as normal.
Diesel Fuel Removal Techniques
| Characteristics | Values |
|---|---|
| Frequency of cleaning diesel engines | Every few months or whenever there is excessive buildup |
| Use of pressure washers | Not recommended due to potential electrical damage |
| Types of degreasers | Citrus-based, water-soluble, dish detergent, organic, high-alkaline |
| Diesel fuel spill cleanup products | OS Step 1 & Step 2 Liquid, OS Oil Absorbent Powder, Oil Solutions products |
| Diesel fuel smell removal from hands | Detergent, salt, lemon juice, mechanic's degreasing hand wash |
| Diesel fuel smell removal from clothes | Soak in cold water and dish soap, use rubbing alcohol, mouthwash, baking soda, or vinegar |
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What You'll Learn
- Use a degreaser, like citrus-based or water-soluble products, or diluted dish detergent
- Soak clothes in cold water and dish soap for 12 to 24 hours
- Use a mechanic's hand wash, like Fast Orange, or a mixture of detergent and salt
- Soak clothes in rubbing alcohol or denatured ethanol to break down diesel particles
- Use a commercial product like Oil Solutions to clean up diesel spills

Use a degreaser, like citrus-based or water-soluble products, or diluted dish detergent
When it comes to washing off diesel fuel, a degreaser can be a highly effective solution. Among the available options, citrus-based, water-soluble, and diluted dish detergent degreasers stand out for their safety, versatility, and performance. Here's a detailed guide to help you understand and utilise these degreasers effectively:
Citrus-based degreasers offer a powerful and relatively safe option for cleaning diesel engines and surfaces without causing damage to metal components. These degreasers are particularly useful for removing tough contaminants like grease, oil, and belt dust. However, it's important to exercise caution when using citrus-based products as they can affect certain materials. For instance, they can make rubber fuel lines soft and wipe off lettering on some surfaces. As a result, these degreasers are best suited for hard surfaces, such as cement to remove tire marks, or in environments where there's no risk of contact with rubber or plastic.
Water-soluble degreasers provide an effective and safer alternative for cleaning diesel engines. They are designed to be safe for most engine components, including metal, plastic, and electrical connections. These degreasers are commonly used in industries with strict safety regulations, such as food processing, healthcare, and electronics. Water-based solutions offer reduced flammability and lower toxicity compared to solvent-based options, making them a preferred choice for safety and environmental considerations.
Diluted dish detergent can be an effective alternative when a dedicated degreaser is not available. Products like Dawn dish soap have been known to successfully remove diesel and gas from clothing when used with hot water. It's important to use the right amount to avoid excessive bubbling. Additionally, some users have reported success with Arm and Hammer with Oxi Clean Liquids detergent, Persil pods with oxygen booster, and Tide detergent for front loaders.
When using any degreaser, it's crucial to follow safety guidelines and instructions. Avoid using excessive water pressure when cleaning diesel engines, as it can push moisture into electrical components, leading to short circuits and corrosion. Always use a gentle stream of water and take the time to properly cover sensors, alternators, and air intakes to prevent expensive damage.
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Soak clothes in cold water and dish soap for 12 to 24 hours
So, you've spilt diesel on your clothes. It happens to the best of us. To effectively wash off diesel fuel, it's important to act quickly and soak the clothes in cold water and dish soap for 12 to 24 hours.
First, fill a tub or bucket with cold or cool water. You can also use warm water, but this may not be suitable for certain fabrics that are prone to shrinkage. Next, add a few generous pumps of a degreasing dish soap, such as Dawn, to the water. Swish the water around to mix the soap in and create a soapy solution. Now, it's time to add your diesel-soaked garments. Make sure they are fully submerged and soaked through.
Let the clothes soak for at least 12 hours, but no more than 24 hours. This extended soaking time is crucial to break down the oils in the diesel fuel and prevent any lingering smells. After soaking, drain the soapy water and refill the tub with clean water to rinse the clothes. You can also use a hose to thoroughly rinse the clothes outdoors before putting them in the washing machine.
It is recommended to pretreat diesel-stained clothes before washing them to prevent the diesel odour and residue from transferring to other garments and your washing machine. In addition to soaking, you can also pretreat clothes by blotting excess diesel with a clean cloth, applying a baking soda and water paste, or using a strong degreaser.
Remember, diesel is a volatile oil with a strong odour and flammable properties. Always exercise caution when handling diesel-soaked clothes and ensure adequate ventilation during the cleaning process.
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Use a mechanic's hand wash, like Fast Orange, or a mixture of detergent and salt
If you're looking to remove diesel fuel from your hands, a dedicated mechanic's hand wash, such as Fast Orange, is a great option. Fast Orange is a heavy-duty hand cleaner designed for mechanics and industrial professionals to remove oil, adhesives, paint, grease, and grime with ease. It's infused with natural citrus and moisturizing agents like aloe, lanolin, and vitamin E, so it not only cleans deep but also keeps your skin hydrated without drying it out.
To use Fast Orange, simply apply it to your dry hands, scrub them clean, and you're good to go. It's that simple! Fast Orange is also biodegradable and free of petroleum solvents, making it a pure and powerful cleaning solution.
For those who prefer a DIY approach, a mixture of detergent and salt can be used as an alternative. Regular laundry detergent by itself may not be effective in removing diesel, but when combined with salt, it can help boost its grease-cutting power. This mixture can be applied directly to the affected areas of clothing, scrubbed, and then washed as usual.
It's important to note that detergent and salt may not be as effective as a dedicated hand wash like Fast Orange, especially for more stubborn diesel stains and odours. Fast Orange contains a unique blend of surface-active agents, builders, enzymes, and additives, specifically designed to target automotive odours and stains.
Additionally, while detergent and salt can be used as a hand scrub, it may not provide the same level of skin hydration and protection as Fast Orange, which includes skin conditioners to prevent dryness and cracking.
In summary, for removing diesel fuel from your hands and surfaces, a mechanic's hand wash like Fast Orange is a highly effective and convenient option. If you're looking for a more affordable or readily available solution, a mixture of detergent and salt can be used as a DIY alternative, but it may require more scrubbing and won't offer the same skin benefits as Fast Orange.
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Soak clothes in rubbing alcohol or denatured ethanol to break down diesel particles
If your clothes have been contaminated with diesel fuel, it is important to act quickly and effectively to prevent any potential damage or staining. One recommended method to break down diesel particles is to soak the affected clothes in rubbing alcohol or denatured ethanol.
Begin by pouring half a cup (approximately 118 millilitres) of rubbing alcohol into a bucket or tub. Ensure that the container is placed on a level surface, preferably in a well-ventilated area. Next, carefully add the contaminated clothing to the alcohol, ensuring that the fabric is thoroughly saturated. It is important to note that rubbing alcohol should not be applied to delicate or synthetic fabrics such as acetate, rayon, silk, or wool, as it may cause damage. Allow the clothes to soak for at least 20 minutes. During this time, the alcohol will work to break down and dissolve the diesel particles, helping to lift them away from the fabric fibres.
For stubborn diesel stains, a variation of this method involves sprinkling baking soda directly onto the stained area before applying the rubbing alcohol. The baking soda will react with the alcohol to form a paste, which can then be gently worked into the stain with a soft-bristled brush. This approach can help to loosen and lift the stain, improving the overall effectiveness of the treatment.
After the soaking process, the clothes can be run through a normal wash cycle in the washing machine. It is recommended to wash the items separately from other laundry to prevent any potential transfer of diesel odour or residue. Inspect the clothing after washing and, if necessary, repeat the process.
While this method is effective for breaking down diesel particles, it is important to exercise caution when working with rubbing alcohol or denatured ethanol. These substances are flammable, so they should be handled and stored safely, away from open flames or heat sources. Additionally, ensure that the work area is well-ventilated to prevent the buildup of vapours.
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Use a commercial product like Oil Solutions to clean up diesel spills
Diesel spills are a common occurrence, given the fuel's widespread use across multiple industries. Cleaning up spills is not only important from a health and safety perspective but also because of the legal requirements surrounding them. Diesel stains and smells similar to petroleum, and its spills can be challenging to clean up.
Oil Solutions offers a range of products that can effectively and quickly clean up diesel spills. These products are designed to eliminate the foul odour and stains that result from diesel spills. The key to their effectiveness lies in microencapsulation. When applied to a diesel spill, the silica matrix in Oil Solutions products completely surrounds the molecules of diesel fuel. This process neutralises the pH of the diesel, effectively removing its unpleasant characteristics.
The specific Oil Solutions products to use depend on the size of the spill. For smaller spills, OS Step 1 & Step 2 Liquid is recommended. To use this product, first, control the spill at the source to prevent further diesel from spilling out. Then, apply OS Step 1 Liquid generously to the entire spill area, followed immediately by OS Step 2 Liquid. Use a broom, rag, or similar item to scrub the liquids into the spill. Wash the area with water—rest assured that the hazardous properties of the diesel will have been neutralised by this point. Repeat these steps until all traces of diesel are removed.
For larger spills, OS Oil Absorbent Powder is a more suitable option. Spread the powder over the spill using a broom to ensure that all the diesel comes into contact with the powder. Collect the combined powder and diesel and dispose of it in any suitable trash receptacle. Any excess powder can be put back in the bag for future use.
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Frequently asked questions
To remove diesel from your hands, you can use detergent and salt, lemon juice, or a mechanic's degreasing hand wash like Fast Orange.
To remove diesel from your clothes, soak the garment in cold water and dish soap for 12 to 24 hours. Then, run the garment through the washing machine as normal. If the diesel smell persists, add 1/2 cup of baking soda to the water.
To remove diesel from the floor, use either OS Step 1 & Step 2 or OS Oil Absorbent Powder, depending on the size of the spill. For smaller spills, apply OS Step 1 Liquid generously to the spill, then immediately apply OS Step 2 Liquid to the same area. Scrub the liquid products into the spill with a broom, rag, or other items, then wash the area with water. Repeat these steps until all diesel is removed.











































