Briggs And Stratton Lawn Mower Change Oil

Changing the oil in your Briggs & Stratton lawn mower is a crucial part of regular maintenance. Neglecting this simple task can lead to serious engine damage and a shortened lifespan for your mower. Think of it as giving your mower a vital blood transfusion. This article will guide you through the process and troubleshoot some common issues you might encounter.

Why Change Your Lawn Mower Oil?

Oil lubricates the engine's moving parts, reducing friction and preventing wear. Over time, oil breaks down, becomes contaminated with debris, and loses its viscosity. This means it can't do its job effectively, leading to increased engine temperature, reduced performance, and ultimately, engine failure. Regular oil changes keep your engine running smoothly and efficiently.

Think of dirty oil like sandpaper rubbing against your engine's internal components! You definitely want to avoid that.

When Should You Change Your Oil?

Briggs & Stratton generally recommends changing the oil after the first 5 hours of use on a new mower (the "break-in" period) and then every 25-50 hours of use, or at least once a year, whichever comes first. If you use your mower frequently or in dusty conditions, you should change the oil more often. Refer to your owner's manual for the manufacturer's specific recommendations.

Tools and Materials You'll Need

Before you begin, gather the following:

New Oil: Consult your owner's manual for the correct type and quantity. SAE 30 is a common choice for most Briggs & Stratton mowers, but synthetic options like 5W-30 offer better performance in extreme temperatures.
Oil Drain Pan: To catch the old oil.
Wrench or Socket: To remove the oil drain plug (if equipped). The size varies depending on the model.
Oil Filter Wrench (Optional): If your mower has an oil filter.
New Oil Filter (Optional): If replacing the filter.
Funnel: To pour in the new oil without spilling.
Rags or Paper Towels: For cleaning up spills.
Gloves: To protect your hands.
Spark Plug Wrench (Optional): To remove the spark plug and prevent accidental starting. Safety First!

Step-by-Step Oil Change Guide

Prepare Your Mower: Disconnect the spark plug wire from the spark plug. This prevents accidental starting while you're working.
Warm Up the Engine (Optional): Running the engine for a few minutes warms the oil, making it flow more easily. However, be careful! Hot oil can cause burns. If you choose to warm the engine, let it cool down slightly before proceeding.
Locate the Oil Drain Plug: The drain plug is usually located on the bottom of the engine. Consult your owner's manual if you're unsure. Some mowers don't have a drain plug; you'll need to tip the mower to drain the oil.
Position the Drain Pan: Place the drain pan under the drain plug or in the path the oil will flow when you tip the mower.
Remove the Drain Plug: Using the appropriate wrench or socket, carefully remove the drain plug. Allow the old oil to drain completely into the pan.
(If Applicable) Replace the Oil Filter: If your mower has an oil filter, unscrew the old filter using an oil filter wrench. Lightly lubricate the rubber gasket of the new filter with fresh oil and screw it on by hand until snug. Then, tighten it another 1/2 to 3/4 turn, according to the filter instructions.
Reinstall the Drain Plug: Once the oil has completely drained, clean the drain plug and reinstall it. Tighten it securely, but don't overtighten.
Add New Oil: Locate the oil fill cap (usually marked with an oil can symbol). Remove the cap and insert the funnel. Pour in the correct amount of new oil, as specified in your owner's manual. Don't overfill!
Check the Oil Level: Replace the oil fill cap and use the dipstick to check the oil level. The oil level should be between the "add" and "full" marks. Add more oil if necessary.
Reconnect the Spark Plug Wire: Reconnect the spark plug wire to the spark plug.
Dispose of the Old Oil Properly: Take the used oil to a local auto parts store or recycling center for proper disposal. Never pour used oil down the drain or onto the ground!

Troubleshooting Common Issues

Problem: Drain Plug Stuck

Solution: Apply penetrating oil (like WD-40) to the drain plug and let it soak for a while. Try using a breaker bar for more leverage. If it's still stuck, you might need to use a pipe wrench or take it to a mechanic. Be extremely careful not to damage the engine casing. Consider using an impact wrench if you have one available, but proceed with caution.

Problem: Oil Not Draining

Solution: Make sure the drain plug is completely removed. The oil might be thick and cold, so warming the engine slightly (with precautions) can help. Also, ensure the mower is positioned correctly to allow for complete drainage. Clogged breather tubes can prevent proper airflow, hindering drainage. Check and clear any obstructions.

Problem: Overfilling the Oil

Solution: Overfilling the oil can cause problems like oil leaks, smoking, and reduced engine performance. Use a siphon or turkey baster to remove the excess oil. Always double-check the oil level with the dipstick. If significant overfilling occurs, you might need to drain all the oil and refill it to the correct level.

Problem: Oil Leaks After Oil Change

Solution: Ensure the drain plug is properly tightened and the oil filter (if applicable) is snug. Check the drain plug washer for damage; replace it if necessary. Also, inspect the oil fill cap and dipstick for proper sealing. Clean any spilled oil to help identify the source of the leak. If the leak persists, there may be an underlying engine issue requiring professional attention.

Problem: Mower Won't Start After Oil Change

Solution: Double-check that the spark plug wire is securely connected. Make sure you used the correct type and amount of oil. If you flooded the engine while trying to start it, let it sit for a few minutes before trying again. In rare cases, improper oil viscosity could cause starting problems, but this is less common with modern multi-grade oils.

Cost Considerations

The cost of an oil change is relatively low. A quart of oil typically costs between $5 and $15, depending on the type (conventional or synthetic). An oil filter, if required, usually costs between $5 and $10. If you do it yourself, the total cost is usually under $25. However, if you take it to a small engine repair shop, you can expect to pay between $40 and $80, including labor. The cost increases if the engine requires additional maintenance or repairs related to neglected oil changes, like replacing worn parts. Regular oil changes can save you significant money in the long run by preventing costly engine repairs.

Conclusion

Changing the oil in your Briggs & Stratton lawn mower is a simple yet essential maintenance task that can significantly extend the life of your engine. By following these steps and troubleshooting common issues, you can keep your mower running smoothly and efficiently for years to come. Remember to always consult your owner's manual for specific recommendations and safety precautions. If you encounter any problems you're not comfortable handling, don't hesitate to seek professional help. Happy mowing!