If you smell gasoline inside or around your vehicle, it indicates that fuel or vapours are escaping from the fuel system. This is a serious issue because petrol is highly flammable, and inhaling fumes can be harmful to your health. The cause may be a leak, faulty component, or evaporation system fault. An immediate inspection is necessary to identify the source and fix it safely.

What does it mean if there is a gasoline smell?

A gasoline smell usually means fuel is leaking or vapours are not being contained properly. This may be due to a faulty fuel cap, leaking fuel lines, injector seals, or an EVAP system problem.

Common causes of a gasoline smell

• Leaking fuel lines or hoses
• Cracked or loose fuel injector seals
• Faulty or loose gas cap
• Fuel tank damage or leaks
• Faulty EVAP (evaporative emissions) system components
• Carburettor or fuel rail leaks (on older vehicles)

Why do you need to fix this problem quickly?

Gasoline leaks are a fire hazard and can also cause your car to fail emissions testing. Breathing fuel vapours can lead to headaches, dizziness, or nausea. Prompt repair is essential for safety and health.

How do you know when to get it checked?

You should book an inspection if:

• You smell gasoline inside or outside the vehicle
• You see visible wet spots or fuel puddles under the car
• Your fuel economy drops suddenly
• The Check Engine Light comes on with EVAP-related codes
• You smell petrol strongly after refuelling

What happens during an assessment?

A mechanic will:

1. Inspect the fuel tank, lines, and injectors for leaks
2. Check the gas cap and filler neck for sealing issues
3. Test the EVAP system for leaks or faulty valves
4. Look for fuel seepage around the engine bay
5. Repair or replace damaged fuel system components

How much does it cost to fix?

Minor issues like replacing a gas cap may cost $50–$120. Fuel line or injector seal repairs typically cost $200–$600. Fuel tank or EVAP system repairs can range from $500–$1,500+, depending on severity.

Is it unsafe to drive with a gasoline smell?

Yes. Fuel vapours are flammable and pose a fire risk, especially in enclosed areas. Breathing in fumes is also harmful. If you smell gasoline, the vehicle should be inspected immediately before further use.