How to Drain Oil from Your Troy-Bilt Lawn Mower: A Step-by-Step Guide?

Tired of dealing with messy oil changes on your Troy-Bilt lawn mower? Changing the oil is a crucial part of lawn mower maintenance, ensuring your machine runs smoothly and lasts for years to come. But knowing how to drain the old oil properly can be confusing, especially for first-time owners. This comprehensive guide will walk you through the process step-by-step, equipping you with the knowledge and confidence to tackle this task with ease.

Here, we’ll cover everything from gathering the necessary tools and supplies to safely draining the oil, cleaning up, and disposing of it responsibly. We’ll also provide helpful tips and tricks to make the process even smoother, and answer common questions you might have about draining oil from your Troy-Bilt lawn mower. By the end of this guide, you’ll be a pro at keeping your lawn mower running in top shape.

A Quick Overview

Draining the oil from your Troy-Bilt lawn mower is a relatively straightforward task that involves a few simple steps:

  1. Preparing the mower: Park the mower on a level surface, allow it to cool down, and gather the necessary tools.
  2. Locating the drain plug: Find the drain plug on the bottom of the engine and loosen it with a wrench.
  3. Draining the oil: Carefully drain the old oil into a suitable container.
  4. Replacing the drain plug: Tighten the drain plug securely.
  5. Adding fresh oil: Fill the engine with fresh oil to the appropriate level.
  6. Cleaning up: Dispose of the used oil responsibly and clean any spills.

Getting Ready for the Oil Change

Before diving into the draining process, it’s essential to gather the right tools and supplies, ensure the mower is properly prepared, and take safety precautions.

Tools and Supplies You’ll Need

  • Oil drain pan: This will catch the used oil, ensuring a clean and organized process.
  • Wrench: A wrench that fits the size of the drain plug is essential. Check your owner’s manual for the correct size.
  • Funnel: This will help you safely pour fresh oil into the engine without making a mess.
  • New engine oil: Choose the correct type and viscosity of oil for your Troy-Bilt lawn mower. Check your owner’s manual for specific recommendations.
  • Gloves: Protect your hands from oil and dirt.
  • Paper towels or rags: For cleaning up spills.
  • Old oil disposal container: A designated container is essential for safely storing and disposing of used oil.

Preparing the Mower for an Oil Change

Before you begin draining the oil, it’s crucial to prepare your Troy-Bilt lawn mower properly:

1. Park the Mower on a Level Surface

A level surface will ensure the oil drains properly and prevents spills.

2. Let the Engine Cool Down

Hot oil can cause burns, so wait for the engine to cool down completely before draining the oil.

3. Remove the Spark Plug Wire

This prevents the engine from starting accidentally during the oil change.

Locating the Drain Plug

Now that your mower is ready, it’s time to locate the drain plug:

Identifying the Drain Plug

The drain plug is typically located on the bottom of the engine, usually a small, hexagonal-shaped bolt or plug. It may be painted black or a similar color to the engine.

Using Your Owner’s Manual

If you can’t find the drain plug, refer to your Troy-Bilt lawn mower’s owner’s manual. The manual will have a clear illustration showing the location of the drain plug.

Draining the Old Oil

With the drain plug located, you’re ready to drain the old oil:

Loosening the Drain Plug

Using your wrench, gently loosen the drain plug by turning it counterclockwise.

Carefully Drain the Oil

As you loosen the plug, the oil will start to flow out. Place your oil drain pan directly underneath the drain plug to catch the oil.

Allowing Complete Drainage

Wait until all the oil has drained out before tightening the plug back in. This may take several minutes.

Replacing the Drain Plug

Once the oil has drained, it’s important to replace the drain plug securely:

Tightening the Drain Plug

Using your wrench, tighten the drain plug back into place by turning it clockwise. Ensure it’s secure, but avoid overtightening, which could damage the threads.

Checking for Leaks

After tightening the drain plug, carefully check for any leaks. If you see any oil leaking, retighten the drain plug or replace it if necessary.

Adding Fresh Oil

With the drain plug secure, you can now add fresh oil to your Troy-Bilt lawn mower:

Choosing the Right Oil

Refer to your owner’s manual for the specific type and viscosity of oil recommended for your lawn mower. The manual will provide details about the oil’s weight and quality.

Adding the Oil

Using your funnel, slowly pour the fresh oil into the engine’s oil fill tube. Check the owner’s manual for the correct oil level. Don’t overfill the engine.

Running the Engine Briefly

After adding fresh oil, start the engine for a few seconds to allow the oil to circulate and distribute evenly.

Cleaning Up and Disposing of Used Oil

After the oil change, it’s essential to clean up any spills and dispose of the used oil responsibly:

Cleaning Spills

Wipe up any oil spills using paper towels or rags. Make sure to dispose of the contaminated materials properly.

Safe Disposal of Used Oil

Used oil should never be poured down the drain or into the environment. It’s essential to dispose of it properly.

  • Local recycling centers: Many communities have designated recycling centers that accept used motor oil.
  • Auto parts stores: Some auto parts stores have bins for used oil disposal.
  • Oil change facilities: Many oil change shops offer used oil disposal services.
  • Check your local regulations: Ensure you follow the proper disposal procedures for your area.

Troubleshooting Common Issues

Here are some common issues you might encounter while changing the oil and tips on resolving them:

Difficulty Loosening the Drain Plug

If you find it difficult to loosen the drain plug, use a wrench that fits the size of the plug securely. If the plug is still stubborn, try applying penetrating oil to the threads and letting it sit for a few minutes before attempting to loosen it again.

Leaking Drain Plug

If the drain plug leaks after tightening, it may need to be replaced. Check the threads for any damage or wear and tear.

Incorrect Oil Level

If you’ve overfilled the engine with oil, it’s crucial to remove the excess. Use a syringe or suction device to extract the excess oil until it reaches the correct level.

Tips for a Smooth Oil Change

Here are some additional tips to make the oil change process even smoother:

  • Wear appropriate clothing: Wear old clothes you don’t mind getting dirty.
  • Use a drain pan with a spout: This will make pouring the used oil into a disposal container easier.
  • Clean the drain plug area: Before tightening the drain plug, wipe away any oil or debris around the area.


Changing the oil in your Troy-Bilt lawn mower is a vital maintenance task that helps keep your machine running smoothly and extend its lifespan. By following the steps outlined in this guide, you can confidently drain the old oil, replace it with fresh oil, and dispose of the used oil responsibly. Remember to refer to your owner’s manual for specific recommendations and always prioritize safety when working on your lawn mower. With a little practice, you’ll become a pro at keeping your Troy-Bilt lawn mower in top condition for years to come.


What type of oil should I use for my Troy-Bilt lawn mower?

The type of oil you should use for your Troy-Bilt lawn mower will depend on the specific model and the climate you live in. Most Troy-Bilt lawn mowers require 10W-30 or 5W-30 oil, but it’s always best to check your owner’s manual for specific recommendations. If you’re unsure, you can always consult with a local lawn mower repair shop.

It’s important to use the correct type of oil because it lubricates the engine parts and helps to prevent wear and tear. Using the wrong type of oil can damage your lawn mower’s engine, so it’s crucial to be aware of your specific model’s requirements.

How often should I change the oil in my Troy-Bilt lawn mower?

The frequency of oil changes for your Troy-Bilt lawn mower depends on how often you use it. For regular use, it’s recommended to change the oil every 25 hours of operation or at least once a year. However, if you use your lawn mower less frequently, you can extend the oil change interval to every 50 hours of operation.

It’s also a good idea to check the oil level regularly and top it off as needed. This will help to ensure that your lawn mower’s engine is always properly lubricated. Regularly checking and changing your oil will help to prolong the life of your lawn mower.

Where can I find the oil drain plug on my Troy-Bilt lawn mower?

The oil drain plug on your Troy-Bilt lawn mower is typically located on the bottom of the engine crankcase. It’s usually a hexagonal-shaped plug with a small hole in the center. You may need to remove a protective cover or shield to access the oil drain plug.

Consult your owner’s manual for specific details and illustrations of the oil drain plug location on your particular model. The manual provides detailed instructions for accessing and removing the drain plug for a successful oil change.

Can I use any type of oil drain pan?

While you can use any type of oil drain pan, it’s best to use one that’s specifically designed for draining oil from lawn mowers. These pans usually have a spout for easy pouring and a graduated scale to measure the amount of oil drained.

It’s important to use a pan that’s large enough to hold all the oil from your lawn mower. If you don’t have a dedicated oil drain pan, you can use a large, flat-bottomed container like a casserole dish or a bucket. However, make sure to choose a container that’s made of a material that won’t be damaged by hot oil.

What should I do with the old oil after draining it?

After draining the old oil from your Troy-Bilt lawn mower, it’s crucial to dispose of it properly. Never pour used motor oil down the drain or into the garbage. Instead, find a local automotive parts store or recycling center that accepts used motor oil.

Many communities have designated drop-off locations for used oil and filters. Check with your local government or waste management agency for information on proper disposal procedures in your area.

Is it necessary to add new oil after draining the old oil?

Yes, it’s crucial to add new oil after draining the old oil from your Troy-Bilt lawn mower. The new oil will lubricate the engine parts and prevent wear and tear.

Refer to your owner’s manual for the specific type and amount of oil needed for your model. Fill the engine oil tank to the recommended level, but avoid overfilling it. Overfilling can lead to engine problems.

How can I know if I have added the correct amount of oil?

Most Troy-Bilt lawn mowers have a dipstick to check the oil level. After adding the new oil, remove the dipstick, wipe it clean, and re-insert it into the oil fill hole. Pull it out again and check the oil level.

The oil level should be between the “add” and “full” marks on the dipstick. If the level is below the “add” mark, add more oil until it reaches the “full” mark. If the oil level is above the “full” mark, remove some oil until it reaches the “full” mark.

Leave a Comment