The short answer
Check for Leaks and Spills
Start by looking at anything that holds fuel: the car, a lawnmower, a chainsaw, or a portable gas can. A tiny drip from a fuel line or a loose cap can leave a strong odor. Wipe down the engine and the floor to spot fresh wet spots.
If you find a puddle, soak it up with absorbent material such as kitty litter or baking soda. Sweep it up and dispose of it properly. Then wash the area with a degreaser and water. Open the garage door and a window to let fresh air move through.
Inspect Fuel Containers
Old plastic gas cans can develop hairline cracks, especially after years of sun exposure. Check the seams and the spout for any drips. Even a sealed can with a loose cap can release vapor that smells like gasoline.
If you find a damaged can, move it outside and away from the house. Transfer the fuel to a new, approved container. Never store gas cans near a water heater, furnace, or any pilot light, because the vapor can ignite.
- Look under the car for wet lines or drips
- Smell the cap on each fuel container
- Check the floor for dark stains or shiny spots
- Feel the bottom of a gas can for moisture
- Open the garage door and let it air out for an hour
Clean Concrete That Absorbs Fuel
Concrete is porous, so spilled gasoline can soak in and keep releasing smell for weeks. A simple wipe is not enough. You need to draw the fuel out of the pores.
Sprinkle a thick layer of baking soda or cat litter over the stain and let it sit overnight. Sweep it up, then scrub with a stiff brush and a mix of warm water and dish soap. Rinse well and let it dry. You may need to repeat this a few times.
When to Ask a Pro
If the smell is strong, you cannot find the leak, or it comes back after cleaning, stop using the garage and keep the door open. A fuel leak inside a wall or under the slab can be dangerous.
A local water damage pro can inspect the area for moisture and fuel residue, and they can help with cleanup if the spill is large. If you live in Daytona Beach, keep your shutoff valve location written down. For a fuel line issue, a plumber or mechanic is the right person to call.
- Strong smell that gets worse over time
- Visible fuel pooling on the floor
- Smell near the water heater or furnace
- Fuel stains that keep returning after cleaning
- Headache or dizziness when you enter the garage
Talk to someone now
Phones are answered 24/7 for Daytona Beach and nearby communities.
Call Now (386) 272-5697Frequently asked questions
Can a gasoline smell in the garage be dangerous?
Yes, gasoline vapor can catch fire if it reaches a spark or flame. It can also cause headaches or dizziness if you breathe it in for a long time. If you feel unwell, leave the garage and see a doctor. Open the door and call a pro if the smell is strong.
How long does a gasoline smell last after a spill?
It depends on how much fuel spilled and how porous the floor is. A small spill might air out in a day or two. A larger spill that soaked into concrete can linger for weeks. Cleaning with absorbents and scrubbing helps speed up the process.
Should I use a fan to air out the garage?
Yes, a fan can help move fresh air through the space. Place it near the open door, pointing outward to push fumes out. Do not use a fan that could spark, such as an old one with a frayed cord. Keep the door open until the smell fades.