What to Do If You Put Mixed Gas in Your Car

Identifying the Problem: Recognizing Mixed Gas Symptoms

So, how do you know if you’ve actually got mixed gas in your engine? Well, your car will probably give you some pretty clear signals. It’s not always obvious, but paying attention to these signs can save you a lot of trouble down the road.

• Rough idling: The engine might shake or sputter when you’re stopped.
• Reduced performance: Your car might feel sluggish or struggle to accelerate.
• Strange noises: You might hear knocking or pinging sounds coming from the engine;
• Check engine light: This is a common indicator of various engine problems, including mixed gas.

If you notice any of these symptoms shortly after filling up your tank, there’s a good chance you’ve got mixed gas. Don’t ignore these warning signs!

Assessing the Severity: How Much Mixed Gas is Too Much?

The severity of the problem depends on the ratio of the wrong fuel to the correct fuel. A small amount of the wrong fuel might not cause significant issues, but a larger quantity can lead to more serious damage. Are you wondering how much is too much?

Small Amount of Mixed Gas

If you’ve only added a small amount of the wrong fuel (e.g., a gallon of diesel in a gasoline car), you might be able to get away with simply topping off the tank with the correct fuel. The correct fuel will dilute the wrong fuel, and your car might run okay, albeit with slightly reduced performance.

Large Amount of Mixed Gas

However, if you’ve filled up a significant portion of the tank with the wrong fuel, you’ll need to take more drastic measures. Running the engine with a high concentration of the wrong fuel can cause:

• Engine knocking
• Fuel system damage
• Catalytic converter damage

In severe cases, it can even lead to engine failure. So, it’s crucial to address the problem promptly.

The Removal Process: Steps to Get Mixed Gas Out

Okay, so you’ve confirmed you have mixed gas and it’s a significant amount. What now? Here’s a step-by-step guide to removing it:

1. Do not start the engine: This is crucial! Starting the engine will circulate the mixed gas throughout the fuel system, potentially causing more damage.
2. Siphon the fuel: Use a siphon pump to remove as much of the mixed gas as possible from the fuel tank. You can find siphon pumps at most auto parts stores.
3. Dispose of the fuel properly: Take the mixed gas to a local recycling center or hazardous waste disposal facility. Do not pour it down the drain or onto the ground.
4. Refill with the correct fuel: Once you’ve removed as much of the mixed gas as possible, refill the tank with the correct fuel.
5. Add a fuel system cleaner: This can help to remove any remaining contaminants from the fuel system.
6. Start the engine and monitor: After refilling, start the engine and listen for any unusual noises. If the engine runs rough, you may need to have the fuel system professionally cleaned.

Professional Help: When to Call a Mechanic

Sometimes, DIY isn’t the answer. If you’re not comfortable working on your car, or if you suspect that the mixed gas has caused significant damage, it’s best to call a professional mechanic. They have the expertise and equipment to diagnose and repair any problems.

Signs You Need a Mechanic

• The engine runs rough after removing the mixed gas.
• You hear knocking or pinging noises from the engine.
• The check engine light remains on after refilling with the correct fuel.
• You’re not comfortable performing the removal process yourself.

A mechanic can also check for any damage to the fuel system, catalytic converter, or other engine components.

Preventing Future Mistakes: Tips to Avoid Mixed Gas

Prevention is always better than cure! Here are some tips to help you avoid accidentally putting the wrong fuel in your car in the future:

• Pay attention at the pump: Double-check the fuel type before you start pumping gas.
• Use a fuel cap reminder: Some cars have a sticker on the fuel cap indicating the correct fuel type.
• Be extra careful when using unfamiliar pumps: If you’re using a gas station you’re not familiar with, take extra care to ensure you’re selecting the correct fuel.
• If in doubt, ask for help: If you’re unsure about which fuel to use, ask a gas station attendant for assistance.

A little bit of awareness can save you a lot of trouble and expense.

FAQ: Mixed Gas in Car Engine

What happens if I drive with mixed gas in my car?

Driving with mixed gas can cause engine knocking, reduced performance, and potentially damage to the fuel system and catalytic converter. The severity depends on the amount of the wrong fuel.

Can I just add the correct fuel to dilute the mixed gas?

If it’s a very small amount of the wrong fuel, you might get away with diluting it. However, for larger amounts, it’s best to remove the mixed gas.

How much does it cost to have a mechanic remove mixed gas?

The cost can vary depending on the extent of the problem and the mechanic’s labor rates. It’s best to get a quote from a few different mechanics.

Is it safe to siphon gas myself?

Siphoning gas can be dangerous if not done properly. Use a siphon pump and work in a well-ventilated area. Avoid creating sparks or flames.