Cleaning and Stain Removal - Gasoline spill on garage floor

Gasoline from the weedwacker spilled on our concrete floor. We wiped it up with a rag, but the fumes are still quite strong. (It happened 2 days ago.)

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Unsealed concrete can soak up a lot of liquid. Scrubbing the area with detergent may help a little. Mostly it will take fresh air and time.

Avoid sparks where there are gasoline fumes, as these tend to be volatile and flammable. After wiping up with rag, do not dispose of rag in trash due to potential for spontaneous combustion and fire. Hang rag outdoors until fumes dissipate or store in sealed container like old paint can or food storage container to contain fumes. Gasoline fumes will eventually dissipate.

For immediate control, cover affected area with degreaser such as Citrus XL or other concentrated orange oil cleaner (D-Limonene Emulsifiable Concentrate). (Do not use the orange-whatever brand products that have been diluted). Orange oil concentrate is used commercially to clean greasy concrete floors and equipment. If using liquid citrus cleaner, you can use nondiluted. Wet concrete and scrub cleaner into concrete with brush and then rinse with hose. (Repeat as needed.) If using citrus powder, wet floor, sprinkle citrus powder on surface, scrub with stiff broom and rinse with clean water. To spray on, dilute 2 to 3 cups of powder to 5 gallons of water. Allow to penetrate, brush and rinse.