What to Do If You Accidentally Put Gas/Oil Mix In Lawn Mower?

Have you ever accidentally put gas/oil mix in your lawn mower, instead of regular gas? Don’t be worried; it happens pretty frequently. However, using the incorrect fuel can seriously harm your lawn mower’s engine and reduce its performance.

This article will walk you through the stages of dealing with this common blunder and preventing it from happening again.

What to Do If You Accidentally Put GasOil Mix In Lawn Mower

Signs of Using the Wrong Fuel

If you accidentally put gas/oil mix in your lawn mower, you may notice some signs that indicate the use of the wrong fuel. It’s important to recognize these signs early on to prevent any further damage to your lawn mower.

Engine Behavior

The lawn mower may refuse to start, or it may stall after a brief period of operation. The engine may also emit a knocking or pinging sound.

Smoke and Exhaust Issues

The lawn mower may produce excessive smoke or emit a foul smell due to incomplete fuel combustion.

Potential Damage

Using the wrong fuel may cause permanent damage to the engine. You may notice metal shavings in the oil when checking the dipstick, or the engine may seize up entirely.

What to Do If You Accidentally Put Gas/Oil Mix In Lawn Mower?

Accidental gas/oil mix in a lawn mower can lead to spark plug fouling, recognized by a black coating. 

Always double-check the fuel type and label to prevent this error, especially if you have multiple containers. Being attentive when fueling your lawn mower is crucial to avoid damaging it.

Step-1. Stop the Mower 

First and foremost, stop the lawn mower immediately. Continuing to run the engine can cause further damage.

 Stop the Mower 
Stop the Mower 

Step-2. Remove the Spark Plug

This is an important safety measure. Removing the spark plug ensures that the engine won’t start accidentally while you’re working on it.

Spark Plug
Spark Plug

Step-3. Drain the Fuel

After that, it’s time to drain the gas/oil mix from the tank. You will need a container to store the mixture and a pair of pliers or a crescent wrench. Here are the steps to follow:

Drain the Fuel
Drain the Fuel
  • Find a level surface to park your lawn mower on.
  • Remove the spark plug cable to ensure no accidental starts.
  • Locate the fuel tank and place the container right under the tank to collect the mixture.
  • Use pliers or a crescent wrench to grasp the fuel line and remove it from the carburetor. Make sure to keep the line above the tank so that the gas/oil mix doesn’t spill onto the lawn mower.
  • Once you’ve removed the fuel line, let the remaining gas/oil mixture drain into the container. This may take several minutes, depending on how much fuel is in the mower.
  • When the tank is empty, replace the fuel line and secure the clamp or hose.

Step-4. Cleaning the Fuel System

After draining the gas/oil mix from your lawn mower, it is essential to clean the fuel system to prevent any issues that may arise from the previous mixture. A dirty carburetor can cause performance problems, and a clogged fuel filter can hinder fuel flow.

Cleaning the carburetor:

  • Carefully remove the carburetor from the engine.
  • Disassemble the carburetor components.
  • Soak them in carburetor cleaner.
  • Use a small brush to scrub away debris.
  • Be gentle to avoid damaging small parts.
  • Ensure all debris is removed before reassembly.

Replacing the fuel filter:

  • Replace the fuel filter every season or every 50 hours of use.
  • Locate the filter and remove it from the fuel line.
  • Install a clean filter in its place.
  • Secure the new filter back onto the fuel line.

Step-5. Refueling with the Correct Fuel

Now that you have successfully drained the gas/oil mix from your lawn mower, it’s time to refuel it with the correct fuel.

  • Determine the correct gasoline type for your lawn mower, usually regular unleaded with an octane rating of 87 or higher.
  • If your mower requires a gas/oil mix, use the correct ratio (e.g., 50:1), as specified in the manual or on the gas tank label.
  • Use a clean container for refueling and avoid mixing different types of fuel.
  • Use a funnel to prevent spills and don’t overfill the tank.
  • After refueling, run the mower for a few minutes to ensure proper fuel circulation.
  • Always double-check the fuel type to prevent damage to your lawn mower.

Step-6. Running a Test and Addressing Issues

After refueling with the correct fuel, it is crucial to run a test to ensure that the lawn mower is functioning properly.

If you observe issues with your lawn mower:

  • Immediately turn off the engine.
  • Investigate the cause, checking for clogs in the fuel system or air filter.
  • If the problem remains unclear, seek professional assistance.
  • Promptly addressing issues prevents further damage and costly repairs.

Preventing Future Mistakes and Seeking Professional Help

Accidentally putting gas/oil mix in your lawn mower can be a frustrating and costly mistake. Some steps are given below to prevent it from happening again in the future:

Label Your Fuel Containers

One of the simplest ways to prevent future mistakes is by properly labeling your fuel containers. Clearly mark what type of fuel is in each container to avoid confusion.

Practice Routine Maintenance

Regular maintenance of your lawn mower can also help prevent future mistakes. This includes checking and cleaning the fuel system, changing the oil on schedule, and keeping the air filter clean.

Seek Professional Help

If you’re unsure about the condition of your lawn mower after accidentally using gas/oil mix, it’s important to seek professional help. An expert can assess the damage, offer repair recommendations, and advise on proper maintenance for optimal performance.

Related Post: Briggs and Stratton Oil Coming Out of Breather Tube: What to Do?

Frequently Asked Questions – FAQs

Is it okay to run my lawn mower with gas/oil mix in it?

No, running your lawn mower with the wrong fuel mix can damage the engine. 

How can I fix the problem if I’ve accidentally put gas/oil mix in lawn mower?

First, drain the gas/oil mix from the mower’s tank. Then, refill it with the correct type of gasoline for your mower. Finally, run the mower for a few minutes to flush out any remaining mixed fuel.

Can using gas/oil mix in my lawn mower permanently damage it?

Yes, using gas/oil mix can lead to serious engine damage if left unaddressed. Quick action to remove the mix and refill with the correct fuel can often prevent long-term harm.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *