How to Change the Oil in Your Ariens Snow Blower

Why Regular Oil Changes Matter

Oil keeps your snow blower's engine running smoothly. Over time, oil gets dirty and breaks down. Changing it regularly helps your machine last longer and work better when you need it most. Fresh oil reduces friction between engine parts, keeps the engine cooler, and helps prevent rust and buildup inside the motor.

Most Ariens snow blower owners should change the oil at least once a year, or more often if you use your machine frequently. Checking your owner's manual will tell you the exact schedule for your specific model. Regular maintenance like this is one of the best ways to keep your equipment running reliably for years to come.

What You'll Need

Before you start, gather these items to make the job easier and safer:

• New oil (check your Ariens manual for the type and amount your model needs)
• An oil drain pan
• A wrench or socket that fits your drain plug
• A new oil filter (if your model has one)
• An oil filter wrench (if needed)
• Clean rags or paper towels
• A funnel
• Safety glasses
• Work gloves

Having everything ready before you begin means you won't have to stop halfway through to hunt for a tool. It also helps you work more safely and efficiently. If you're not sure what type of oil your Ariens model uses, check the owner's manual or look at the engine itself—many machines have the oil type printed right on the engine cover.

Getting Ready

Start with a cold engine. If you've been using your snow blower recently, let it sit for at least 30 minutes before you begin. A warm engine can cause burns, so it's important to wait. Cold oil also drains more completely, which means you'll remove more of the old, dirty oil from the engine.

Find a flat, level work area where you can safely work on your machine. Locate the oil drain plug underneath or on the side of the engine. Your owner's manual will show you exactly where it is on your model. Place your oil drain pan directly under the plug to catch the old oil. You may want to spread some newspaper or cardboard around the work area to catch any spills and make cleanup easier.

Draining the Old Oil

Using your wrench, slowly turn the drain plug counterclockwise until it comes loose. Once it's loose enough to turn by hand, carefully unscrew it the rest of the way. Be prepared—some oil may still be warm and can drip quickly. Let all the old oil drain into the pan. This may take several minutes, so be patient and don't rush. The more old oil you remove, the cleaner your engine will be.

While the oil is draining, wipe the drain plug clean with a rag. Look at the plug and the area around it for any damage or wear. If the plug looks damaged or if the threads are stripped, you may need to replace it. Once all the oil has finished dripping, set the clean plug aside on a clean rag so it doesn't get dirty before you reinstall it.

Replacing the Oil Filter (If Your Model Has One)

Not all Ariens snow blowers have an oil filter, so check your manual first. If your model does have one, locate it on the engine—it's usually a cylindrical canister. Use an oil filter wrench to turn it counterclockwise until it comes free. Be careful, as there may still be old oil inside the filter. Drain any remaining oil from the old filter into your pan.

Take the new filter and apply a thin layer of new oil to the rubber gasket on top. This helps create a good seal and makes it easier to remove the filter next time. Screw the new filter on by hand until the gasket touches the engine, then turn it another three-quarters of a turn. Don't use the wrench to tighten it—hand-tight is correct. Over-tightening can damage the filter and make it hard to remove later.

Adding New Oil

Place the funnel in the oil fill opening on top of the engine. This opening usually has a cap with an oil can symbol on it. Slowly pour in the new oil, taking your time so you don't spill. Check your manual to see exactly how much oil your model needs. Different Ariens models require different amounts, so it's important to get this right.

Don't overfill your engine with oil. Too much oil can damage the engine and cause it to smoke or run poorly. Once you've added the correct amount, replace the oil cap and make sure it's tight. Wipe up any spilled oil with a clean rag.

Reinstalling the Drain Plug

Screw the drain plug back in by hand first to make sure the threads line up correctly. This prevents cross-threading, which can strip the threads and cause leaks. Once it's hand-tight, use your wrench to tighten it a bit more. Don't overtighten—just make it snug enough that it won't leak.

If you're not sure how tight is tight enough, remember that you want it firm but not forced. Over-tightening can damage the plug or the engine, and you may have trouble removing it next time. A gentle, firm turn with the wrench is usually all you need.

Checking Your Work

Start your snow blower and let it run for a minute or two. This circulates the new oil throughout the engine and helps you spot any problems. Watch the engine carefully while it runs. Check around the drain plug and filter for any leaks or drips. If everything looks dry, your oil change was successful.

Turn off the engine and let it cool for a few minutes. Once it's cool enough to touch safely, check the oil level using the dipstick or sight glass on your engine. The oil should be at the correct level marked on the dipstick. If it's low, add a small amount more. If it's too high, drain a little out. After you've confirmed the level is correct, you're done with the oil change.

Disposing of Old Oil

Never pour old oil down the drain, into the ground, or into the trash. Used oil is harmful to the environment and is often illegal to dispose of improperly. Take your old oil to a recycling center, auto parts store, or service station. Many of these places take used oil for free, and some may even give you a small discount on new oil if you bring in your old oil.

If you're not sure where to take your old oil, call ahead to local auto parts stores or service stations and ask. Some communities also have hazardous waste collection days where you can drop off used oil. Proper disposal protects our water and soil, so it's worth taking the time to do it right.

Key Takeaways

• Regular oil changes keep your Ariens snow blower engine running smoothly and lasting longer.
• Always work on a cold engine to avoid burns and to allow old oil to drain completely.
• Check your owner's manual for the correct oil type and amount for your specific model.
• Take your time draining old oil and don't rush the process.
• If your model has an oil filter, replace it at the same time you change the oil.
• Dispose of old oil properly at a recycling center or auto parts store, never down the drain.

Frequently Asked Questions

How often should I change the oil in my Ariens snow blower?

Most Ariens snow blowers need an oil change at least once a year. If you use your machine frequently or in dusty conditions, you may need to change it more often. Check your owner's manual for the specific recommendation for your model. Some owners change their oil at the start of the snow season and again at the end to keep the engine in top shape.

What type of oil does my Ariens snow blower need?

The correct oil type depends on your specific Ariens model and the climate where you live. Your owner's manual will list the recommended oil type and viscosity. In general, many small engines use SAE 30 oil in warm weather and SAE 10W-30 in cold weather. Some newer models may use synthetic oil. Always check your manual to be sure you're using the right oil for your machine.

Can I change the oil without removing the spark plug?

You don't have to remove the spark plug to change the oil, but some people do it as an extra safety measure. Removing the spark plug wire prevents the engine from accidentally starting while you're working on it. This is optional, but it's a good habit to develop for all engine maintenance work. If you do remove the spark plug wire, make sure to reconnect it securely before you start the engine again.

What should I do if oil is leaking after I change it?

If you notice oil leaking after your oil change, turn off the engine and let it cool. Check that the drain plug is tight and that the oil filter (if you have one) is installed correctly. Make sure you didn't overfill the engine with oil. If the leak continues after you've checked these things, there may be a problem with the drain plug or gasket. Consult your owner's manual or contact an Ariens dealer for help.