How to Get Diesel Fuel Smell Out of Clothes

Quick Answer

Diesel fuel smell doesn't come out in a regular wash because diesel is an oily hydrocarbon that clings to fabric fibers. You need to break down the oil first. The proven method: soak clothes in a baking soda solution for several hours, then wash with vinegar, then wash again with detergent on the hottest safe temperature. Air dry outdoors. It may take 2-3 rounds, but the smell will come out.

Why Regular Washing Doesn't Work

Diesel fuel is a petroleum-based product made up of hydrocarbons that don't dissolve in water. When you run diesel-soaked clothes through a normal wash cycle, the water and detergent remove some of the diesel, but much of it stays embedded in the fabric fibers. The clothes come out smelling just as strong as before — sometimes worse, because the warm water can actually spread the diesel through the fabric more evenly.

This is frustrating but not hopeless. You need to use a staged approach that first breaks down the oily diesel, then removes it, then eliminates the residual odor.

The Step-by-Step Method

Other Products That Help

Fast Orange or similar mechanics' hand cleaners. These are designed to cut through petroleum products. Rub the hand cleaner into the affected areas before washing. It's surprisingly effective because it's formulated specifically for hydrocarbon oils.

Coca-Cola. Yes, really. Adding a can of Coke to the wash cycle helps break down petroleum residue. The phosphoric acid in Coke acts as a degreaser. It's an old mechanic's trick that actually works.

Pine-Sol or original Lestoil. A small amount (1/4 cup) added to the wash helps cut through oil-based stains and odors. These are stronger cleaners, so check fabric compatibility first.

Enzyme-based detergents. Products designed for tough stains (like sports detergents or pet stain removers) contain enzymes that break down organic compounds more aggressively than regular detergent.

Important Safety Notes

Never put diesel-saturated clothes directly in the dryer. Diesel fuel is flammable, and the heat of a dryer can ignite it. Always wash the clothes first to remove the bulk of the fuel, and make sure no diesel smell remains before machine drying.

Don't wash diesel clothes with other laundry. The diesel will transfer to your other clothes, and then you'll have multiple items to de-odorize. Wash contaminated items separately.

Clean your washing machine after processing diesel clothes. Run an empty hot cycle with vinegar or baking soda after you're done. This prevents the diesel residue from transferring to your next regular load. If your front-load washer already has smell issues, diesel residue in the gasket will make things worse.

When to Give Up on the Garment

Some heavily contaminated items, especially those that sat with diesel on them for a long time, may never fully lose the smell. Synthetic fabrics (polyester, nylon) are particularly stubborn because the petroleum-based fibers have a chemical affinity for the petroleum-based diesel — they hold onto it more tenaciously than natural fibers like cotton.

If you've done 3-4 wash cycles with the method above and the smell persists, it may be time to repurpose the item as a work garment or let it go. Most diesel-affected clothing, though, responds well to the baking soda and vinegar approach with enough patience and repetition.

Keep in mind that your nose adapts — if you've been smelling diesel all day, you may not be the best judge. Ask someone else to do the smell test, or leave the clothes hanging outside for a day and come back to them fresh.