So, you're ready to tackle an oil change on your 2018 Subaru Impreza? Awesome! Doing your own oil changes is a fantastic way to save money and get to know your car better. This guide will walk you through each step, making the process straightforward and hassle-free. We'll cover everything from gathering the right tools and materials to safely disposing of the old oil. Whether you're a seasoned DIYer or a complete newbie, this guide has got you covered. Let's get started and keep that Impreza running smoothly!

Preparing for Your Oil Change

Before you even think about getting under your car, preparation is key. This part is all about gathering the right stuff and ensuring you have a safe workspace. A well-prepared workspace not only makes the job easier but also helps prevent accidents and keeps things organized. It’s like setting the stage for a successful performance – the more prepared you are, the smoother everything will go.

First up, you'll need to assemble your tools and materials. Here’s a checklist to get you started:

• New Oil: The amount and type of oil will depend on your 2018 Subaru Impreza's specifications. Consult your owner's manual; typically, it requires around 4.4 quarts of 0W-20 synthetic oil. Using the correct oil is crucial for your engine's longevity and performance. Don't skimp on quality here; opt for a reputable brand.
• New Oil Filter: Again, check your owner's manual or a reliable parts store for the correct oil filter for your specific Impreza model. A new filter ensures that your fresh oil stays clean and free of contaminants.
• Wrench: You'll need a wrench to remove the oil drain plug. The size will vary, but a 17mm wrench is a common size for Subaru vehicles. Make sure it fits snugly to avoid stripping the plug.
• Oil Filter Wrench: This specialized wrench helps you remove the old oil filter. There are various types available, so choose one that fits your filter size.
• Drain Pan: A good-sized drain pan is essential to catch the old oil. Make sure it's large enough to hold all the used oil to prevent spills.
• Funnel: A funnel will help you pour the new oil into the engine without making a mess. It’s a simple tool, but it can save you a lot of cleanup time.
• Gloves: Protect your hands from the grime and oil. Nitrile gloves are a good choice as they are resistant to oil and chemicals.
• Rags or Shop Towels: You'll need these to wipe up any spills or drips. Keep plenty on hand – you'll be surprised how useful they are.
• Jack and Jack Stands (or Ramps): You'll need to safely lift your car to access the drain plug and oil filter. Never work under a car supported only by a jack; always use jack stands for safety.
• Wheel Chocks: These prevent your car from rolling while you're working on it. Safety first!

Once you have all your tools and materials, it's time to prepare your workspace. Choose a flat, level surface – a garage or driveway works well. Ensure the area is well-lit and free from obstructions. Place wheel chocks behind the rear wheels to prevent any movement. Now you’re ready to elevate your Impreza safely using a jack and jack stands, or ramps. Refer to your owner's manual for the correct jacking points. Remember, safety is paramount, so take your time and double-check everything before getting under the car.

Step-by-Step Oil Change Process

Alright, with everything prepped, let's dive into the actual oil change. Follow these steps carefully to ensure a smooth and successful process. It might seem daunting at first, but once you've done it once, you'll realize it's quite manageable. Remember to take your time and don't rush – a careful approach will prevent mistakes and ensure everything is done correctly.

1. Warm Up the Engine: Start your car and let it run for a few minutes. Warming the engine makes the oil flow more easily, helping to drain more of the old oil. However, don't let it get too hot; you want it warm, not scalding.
2. Secure the Vehicle: With the engine warmed up, turn it off and engage the parking brake. Place wheel chocks behind the rear wheels for added safety.
3. Lift the Vehicle: Using a jack, lift the front of your 2018 Subaru Impreza and securely place jack stands under the designated support points. Never work under a car supported only by a jack. If you have ramps, drive the car onto the ramps carefully.
4. Locate the Oil Drain Plug: Crawl under the car and locate the oil drain plug on the oil pan. It's usually the lowest point on the pan. Place the drain pan directly underneath the plug.
5. Remove the Drain Plug: Using the correct size wrench, carefully loosen the drain plug. Once it's loose, finish removing it by hand, being careful as the oil will start to flow out. Let the oil drain completely into the pan. This may take 10-15 minutes.
6. Remove the Oil Filter: While the oil is draining, locate the oil filter. Place the drain pan under the filter to catch any drips. Use the oil filter wrench to loosen and remove the old filter. Be prepared for some oil to spill when you remove the filter.
7. Prepare the New Oil Filter: Before installing the new oil filter, lightly lubricate the rubber gasket with fresh oil. This helps create a good seal. Screw the new filter on by hand until it's snug, then tighten it another ¾ turn according to the filter's instructions. Avoid overtightening.
8. Reinstall the Drain Plug: Once the oil has completely drained, clean the drain plug and inspect the crush washer. If the crush washer is damaged, replace it. Reinstall the drain plug and tighten it to the manufacturer's specified torque. If you don't have a torque wrench, tighten it snugly but don't overtighten it.
9. Lower the Vehicle: Carefully lower the vehicle from the jack stands or drive it off the ramps.
10. Add New Oil: Open the hood and locate the oil filler cap. Remove the cap and insert a funnel. Pour in the correct amount of new oil as specified in your owner's manual. For a 2018 Subaru Impreza, it's typically around 4.4 quarts of 0W-20 synthetic oil.
11. Check the Oil Level: After adding the oil, replace the oil filler cap and start the engine. Let it run for a minute or two, then turn it off. Wait a few minutes for the oil to settle, then check the oil level using the dipstick. Add more oil if needed to reach the full mark.
12. Inspect for Leaks: Check around the oil drain plug and oil filter for any leaks. If you see any leaks, tighten the connections as needed.

Post-Oil Change Procedures

Now that you've successfully changed your oil, there are a few final steps to take care of. These steps are important for ensuring everything is running smoothly and for maintaining proper records. Don't skip these – they're the finishing touches that complete the job.

First, reset the oil life indicator in your 2018 Subaru Impreza. The procedure for resetting the oil life indicator can vary slightly depending on the specific trim level, but generally involves using the infotainment system or the buttons on the steering wheel. Consult your owner's manual for the exact steps. Resetting the indicator ensures that you'll be reminded when it's time for your next oil change.

Next, properly dispose of the used oil and filter. Do not pour used oil down the drain or into the ground. It's harmful to the environment and illegal in many areas. Instead, take the used oil to a local auto parts store or recycling center that accepts used oil. Many auto parts stores will take used oil and filters for free. Place the used oil filter in a plastic bag to prevent any drips.

Finally, keep a record of your oil change. Note the date, mileage, and the type of oil and filter used in a notebook or digital document. This record will help you keep track of your maintenance schedule and can be useful when selling the car. Regular maintenance records demonstrate that you've taken good care of the vehicle.

Tips and Tricks for a Smoother Oil Change

Changing your oil doesn't have to be a chore. With a few clever tricks, you can make the process even smoother and more efficient. These tips are born from experience and can save you time, hassle, and even prevent potential problems.

• Warm the Oil, But Not Too Much: As mentioned earlier, warming the engine helps the oil flow more freely. However, be careful not to let the engine get too hot. Hot oil can burn you, and it can also make the drain plug and filter difficult to handle. A few minutes of idling is usually sufficient.
• Use the Right Tools: Having the right tools can make a huge difference. Invest in a good quality oil filter wrench and a properly sized wrench for the drain plug. Using the wrong tools can lead to stripped bolts and damaged filters, which can turn a simple job into a nightmare.
• Pre-Soak the Oil Filter: Before installing the new oil filter, pre-soak it with fresh oil. This helps to lubricate the engine immediately upon startup and reduces wear. Simply pour a small amount of oil into the filter and let it soak into the filter media.
• Check the Oil Level Carefully: After adding new oil, be sure to check the oil level using the dipstick. Wipe the dipstick clean, reinsert it, and then check the level. Add more oil as needed to reach the full mark. Avoid overfilling, as this can also cause problems.
• Keep Everything Clean: Keep your workspace clean and organized. Use rags or shop towels to wipe up any spills or drips immediately. This will prevent messes and make the job more enjoyable.
• Double-Check Everything: Before starting the engine, double-check that the drain plug and oil filter are properly tightened. Also, make sure that you've removed all tools and rags from under the hood. A quick visual inspection can prevent costly mistakes.

By following these tips and tricks, you can make your next oil change even easier and more efficient. With a little practice, you'll become a pro at changing your own oil and keeping your 2018 Subaru Impreza running smoothly.

Troubleshooting Common Issues

Even with careful preparation, you might encounter some hiccups during your oil change. Don't panic! Most common issues have straightforward solutions. Knowing how to troubleshoot these problems can save you time and frustration. Let's look at some typical scenarios and how to handle them.

• Stripped Drain Plug: If you accidentally strip the drain plug, don't force it. You can try using a slightly larger wrench or a specialized tool designed to remove stripped bolts. If that doesn't work, you may need to replace the oil pan. To prevent this, always use the correct size wrench and avoid overtightening the drain plug.
• Stuck Oil Filter: Sometimes, the oil filter can be difficult to remove. Make sure you're using the correct size oil filter wrench. You can also try tapping the filter with a hammer to help loosen it. As a last resort, you can puncture the filter with a screwdriver and use it for leverage, but be careful not to damage the engine.
• Oil Leak After Oil Change: If you notice an oil leak after changing the oil, check the drain plug and oil filter. Make sure they are properly tightened. Also, inspect the crush washer on the drain plug and the gasket on the oil filter. If either is damaged, replace them.
• Difficulty Removing Old Oil Filter Gasket: Sometimes, the old oil filter gasket can stick to the engine. Make sure you remove it completely before installing the new filter. Use a scraper or a small screwdriver to carefully remove the old gasket. If you install a new filter over the old gasket, it will likely cause a leak.

By being aware of these potential issues and knowing how to troubleshoot them, you can handle your oil change with confidence. Remember, if you're unsure about anything, it's always best to consult a professional mechanic. Keeping your 2018 Subaru Impreza's engine well-maintained is crucial for its longevity, and addressing issues promptly will ensure optimal performance.

Conclusion

Changing the oil on your 2018 Subaru Impreza might seem intimidating at first, but as you've seen, it's a manageable task with the right preparation and guidance. By following these step-by-step instructions, you can save money, gain a better understanding of your car, and ensure its longevity. Remember to prioritize safety, use the correct tools and materials, and take your time. With a little practice, you'll become confident in your ability to perform this essential maintenance task.

So, grab your tools, gather your supplies, and get ready to give your Impreza the fresh oil it deserves. Happy wrenching, and here's to many more miles of smooth driving!