How to Change Oil in Your Briggs & Stratton Small Engine

Why Oil Changes Matter for Your Engine

Oil keeps your Briggs & Stratton engine running smoothly. Over time, oil gets dirty and breaks down. Changing the oil regularly helps your engine last longer and work better. Most small engines need an oil change every 50 hours of use, or at least once a year if you don't use it much.

What You'll Need

Before you start, gather these items:

• New oil (check your engine manual for the right type and amount)
• An oil drain pan or container
• A wrench or socket set
• An oil filter wrench (if your model has a filter)
• Rags or paper towels
• A funnel
• Safety glasses

Step 1: Prepare Your Engine

Let your engine cool down for a few minutes if you've been using it. A warm engine drains better than a cold one, but you don't want it hot enough to burn you. Make sure the engine is on a flat, level surface. This helps you drain all the old oil.

Step 2: Locate the Drain Plug

Find the drain plug on the bottom of your engine. It looks like a bolt sticking out. Place your drain pan underneath it to catch the old oil. Loosen the plug by turning it counterclockwise with your wrench. Once it's loose enough, unscrew it by hand and set it aside in a safe place.

Step 3: Drain the Old Oil

Let the old oil drain completely into the pan. This may take several minutes. Tip the engine slightly if needed to help the oil flow out. Don't rush this step—letting all the old oil drain out is important.

Step 4: Replace the Oil Filter (If Equipped)

Some Briggs & Stratton engines have an oil filter. If yours does, locate it on the side of the engine. Use an oil filter wrench to unscrew it by turning counterclockwise. Once it's loose, unscrew it by hand. Wipe the filter mounting surface clean with a rag. Take your new filter and apply a thin layer of new oil to the rubber gasket on top. Then screw the new filter on by hand until it's snug. Don't over-tighten it.

Step 5: Replace the Drain Plug

Wipe the drain plug clean with a rag. Screw it back in by hand first, then tighten it with your wrench. Don't make it too tight—you could strip the threads.

Step 6: Add New Oil

Place your funnel in the oil fill opening on top of the engine. Slowly pour in the new oil. Check your engine manual to see exactly how much oil your model needs. Pour a little at a time and check the oil level with the dipstick as you go. Stop when the oil reaches the "full" mark on the dipstick.

Step 7: Check Your Work

Wipe the dipstick clean, reinsert it all the way, then pull it out again to check the level one more time. The oil should be between the minimum and maximum marks. Screw the oil cap back on securely.

Step 8: Run the Engine

Start your engine and let it run for a minute or two. This circulates the new oil through the engine. Stop the engine and wait a few minutes, then check the oil level again. Add a little more oil if needed to reach the full mark.

Dispose of Old Oil Properly

Never pour old oil down the drain or into the ground. Take it to a recycling center, auto parts store, or service station that takes used oil. Many places take it for free.

Keep Track of Your Maintenance

Write down the date and hours of use when you change your oil. This helps you remember when the next change is due. Regular oil changes are one of the best things you can do to keep your engine in good shape.