Car care · Elgin Auto Sales & Service Center · Elgin, IL
Car Smells Like Gas: What to Do
A gasoline smell in or around your car is worth taking seriously. Here is what the owner's manual says to do about fuel fumes and leaks, the refueling habits that can cause a smell, and how a gas smell differs from exhaust, using the 2026 Ram 1500 owner's manual as the example.
Immediatelylocate and correct the cause of gasoline fumes
Overnightcheck under the car for fuel leaks
5 secondsnozzle stays in after it clicks off
No top-offavoid spills and overfilling
The short answer
The 2026 Ram 1500 owner's manual says that if gasoline fumes are detected or a fuel leak is suspected, the cause should be located and corrected immediately. Check under the vehicle after overnight parking for fuel or other fluid leaks. Topping off can spill fuel; the manual says not to top off the tank, to avoid fuel spillage and overfilling. A burning smell is different: the manual links a pungent burning odor to an engine that may be out of tune. And exhaust carbon monoxide has no smell at all.
Gas smells and what the manual says
These are the fuel- and odor-related situations the 2026 Ram 1500 owner's manual describes, and what it says about each:
| What you notice | What the manual says |
|---|---|
| Gasoline fumes, or a suspected fuel leak | The cause should be located and corrected immediately. |
| Fuel or fluid on the ground under the car | Check the area under the vehicle after overnight parking for fuel, coolant, oil or other fluid leaks. |
| A smell after filling up | To avoid fuel spillage and overfilling, do not top off the fuel tank after filling. |
| Check engine light on after engine start or refueling | Certain conditions, such as a loose or missing gas cap or poor quality fuel, may turn the light on after engine start. Adding fuel with the engine running may also turn it on. |
| A pungent burning odor or light smoke | Your engine may be out of tune or malfunctioning and may require immediate service. |
From the 2026 Ram 1500 Owner's Manual, Malfunction Indicator Light (p. 144), Refueling The Vehicle (pp. 214-215), Refueling In An Emergency (p. 298), Fluid Leaks (p. 304) and Fuel System Cautions (p. 368), read November 11, 2026.
What to do when you smell gas
1. Take it seriously. The Ram manual says that if gasoline fumes are detected or if fuel leaks are suspected, the cause should be located and corrected immediately.
2. Look under the vehicle. The manual's periodic safety checks include checking the area under the vehicle after overnight parking for fuel, coolant, oil or other fluid leaks.
3. Keep ignition sources away. The manual says never to have any smoking materials lit in or near the vehicle when the fuel door is open or the tank is being filled.
4. Get it checked. Our advice: if the smell is strong, keeps coming back, or you can see fuel dripping, have the fuel system inspected before driving any further than you need to.
From the 2026 Ram 1500 Owner's Manual, Refueling The Vehicle (p. 214) and Fluid Leaks (p. 304), read November 11, 2026. Step 4 is our own advice.
Refueling habits that can cause a smell
The Ram manual's refueling steps: put the vehicle in PARK and switch the ignition off; insert the nozzle fully; when the nozzle clicks or shuts off, the tank is full; keep the nozzle in the filler for five seconds after it clicks to let fuel drain from the nozzle; then remove it and close the fuel door. It cautions not to top off the tank after filling, to avoid fuel spillage and overfilling.
It also says never to add fuel with the engine running, which violates most state and federal fire regulations and may cause the Malfunction Indicator Light to turn on.
The 2026 Ram 1500 uses a capless fuel filler sealed by two flapper doors. Most gas cans will not open those flappers, so equipped trucks come with a refueling funnel; the manual says to insert it fully and take care to open both flappers to avoid spills. Vehicles with a gas cap are different: the manual notes a loose or missing gas cap may turn on the check engine light.
From the 2026 Ram 1500 Owner's Manual, Malfunction Indicator Light (p. 144), Refueling The Vehicle (pp. 214-215) and Refueling In An Emergency (p. 298), read November 11, 2026.
Smells like burning, not gas?
The Ram manual says an out-of-tune engine or certain fuel or ignition malfunctions can cause the catalytic converter to overheat. If you notice a pungent burning odor or some light smoke, the engine may be out of tune or malfunctioning and may require immediate service.
In unusual situations involving grossly malfunctioning engine operation, the manual says a scorching odor may suggest severe and abnormal catalyst overheating. If this occurs, it says to stop the vehicle, turn off the engine and allow it to cool, and get service immediately.
From the 2026 Ram 1500 Owner's Manual, Exhaust System (p. 322) and Fuel System Cautions (p. 368), read November 11, 2026.
Exhaust fumes are a different problem
A gasoline smell is not the same as exhaust. The Ram manual says exhaust contains carbon monoxide, which is colorless and odorless.
If exhaust fumes can be detected inside the vehicle, if the exhaust sounds different, or if the underside or rear of the vehicle is damaged, the manual says to have the complete exhaust system inspected. Until it is repaired, drive with all side windows fully open, and never run the engine in a closed area such as a garage.
From the 2026 Ram 1500 Owner's Manual, Exhaust Gas and Carbon Monoxide Warnings (p. 305) and Exhaust System (p. 322), read November 11, 2026.
What not to do
Do not fill containers inside the vehicle. The manual says a fire may result if fuel is pumped into a portable container inside a vehicle; always place fuel containers on the ground while filling, because static electricity can ignite fuel vapor.
Do not lean on fuel system cleaners. The manual says indiscriminate use of fuel system cleaning agents should be avoided, because many may contain active solvents or similar ingredients that can harm fuel system gasket and diaphragm materials.
Do not use E-85 or high-ethanol blends in a non-flex-fuel vehicle. The 2026 Ram 1500 manual says not to use E-85, gasoline containing methanol, or gasoline with more than 15% ethanol, which may cause starting and drivability problems and damage critical fuel system components. Check your own manual for your vehicle's fuel requirements.
From the 2026 Ram 1500 Owner's Manual, Refueling The Vehicle (pp. 214-215), Refueling In An Emergency (p. 298) and Materials Added To Fuel and Gasoline/Oxygenate Blends (p. 367), read November 11, 2026.
Get a gas smell checked at Elgin Auto Sales & Service Center
Smelling gas? Schedule service or see our service specials.
Our service department at 1200 E. Chicago St. in Elgin is open Monday to Friday 8 a.m. to 5 p.m. and Saturday 8 a.m. to 4 p.m., and is closed Sunday. Get directions.
Gas smell FAQ
Why does my car smell like gas?
Causes vary by vehicle. The 2026 Ram 1500 manual says that if gasoline fumes are detected or a fuel leak is suspected, the cause should be located and corrected immediately. The manual also says not to top off the tank, to avoid fuel spillage and overfilling.
Is it safe to drive if my car smells like gas?
The Ram manual says the cause of gasoline fumes should be located and corrected immediately. Our advice: if the smell is strong or you see fuel leaking, have it checked before driving further than you must.
Can a loose gas cap cause a gas smell?
The Ram manual says a loose or missing gas cap may turn on the check engine light. The 2026 Ram 1500 uses a capless filler sealed by two flapper doors instead of a gas cap.
Why does my car smell like gas after filling up?
Our advice: check whether fuel was spilled. The Ram manual says not to top off the tank and to keep the nozzle in for five seconds after it clicks so fuel can drain.
Is an exhaust smell the same as carbon monoxide?
No. The manual says carbon monoxide is colorless and odorless. If you can detect exhaust fumes inside the vehicle, have the exhaust system inspected.
What are your service hours?
Monday to Friday 8 a.m. to 5 p.m. and Saturday 8 a.m. to 4 p.m. We are closed Sunday.
Smelling gas?
Visit us at 1200 E. Chicago St. in Elgin.
Sources
Fuel, refueling and exhaust information is from the 2026 Ram 1500 owner's manual, read November 11, 2026. Other vehicles differ; follow your own manual. Your own vehicle's labels and owner's manual are the authority for your vehicle. Our address and service hours are from our own website, checked the same day. Photo is of our dealership.
- 2026 Ram 1500 Owner's Manual (Mopar): Malfunction Indicator Light, Refueling The Vehicle, Refueling In An Emergency, Fluid Leaks, Exhaust Gas, Exhaust System, Materials Added To Fuel, Fuel System Cautions (PDF pp. 146, 216-217, 300, 306-307, 324, 369-370; printed pp. 144, 214-215, 298, 304-305, 322, 367-368), FCA US LLC via vehicleinfo.mopar.com, read November 11, 2026
- Service page: address and hours, Elgin Auto Sales & Service Center, read November 11, 2026