Hey guys! Changing your oil is one of the most important things you can do to keep your 2018 Nissan Altima SR running smoothly. It might seem intimidating, but trust me, it's totally doable, even if you're not a super experienced mechanic. This guide will walk you through each step, making it easy to save some cash and get the job done right. So, grab your tools, and let's get started!

Why Change Your Oil?

Before we dive into the how-to, let's quickly chat about why regular oil changes are so crucial. Your engine's oil is like its lifeblood. It does a bunch of important stuff, like:

• Lubricating: Oil coats all the moving parts in your engine, reducing friction and preventing them from grinding against each other. This is super important because without proper lubrication, those parts would wear out really quickly.
• Cooling: As your engine runs, it generates a ton of heat. Oil helps to absorb and dissipate this heat, preventing your engine from overheating. Overheating can lead to serious damage, so keeping your oil fresh is a must.
• Cleaning: Over time, oil gets contaminated with dirt, debris, and other gunk. This dirty oil can clog up your engine and reduce its performance. Fresh oil helps to flush out these contaminants and keep your engine clean.
• Protecting: Oil contains additives that help to protect your engine from corrosion and other damage. These additives break down over time, so regular oil changes are necessary to replenish them.

Basically, regular oil changes keep your engine running efficiently, prevent costly repairs, and extend its lifespan. Skipping oil changes is like neglecting your health – it might not cause immediate problems, but it'll catch up with you eventually. For the 2018 Nissan Altima SR, Nissan recommends changing the oil every 5,000 miles or 6 months, whichever comes first. However, if you do a lot of stop-and-go driving, tow heavy loads, or live in a dusty environment, you might want to change it more frequently. Keeping your oil clean ensures optimal performance and longevity for your Altima's engine. Now that you know why it's important, let's get into the nitty-gritty of how to do it.

What You'll Need

Okay, to get started, you'll need to gather a few supplies. Don't worry; most of this stuff is pretty easy to find at your local auto parts store. Here's what you'll need:

• New Oil: The 2018 Nissan Altima SR typically takes around 4.8 quarts of 0W-20 synthetic oil. Always double-check your owner's manual to confirm the exact amount and type of oil recommended for your specific engine. Using the correct oil is crucial for optimal performance and engine protection.
• New Oil Filter: A new oil filter is a must every time you change your oil. It helps to remove any contaminants from the oil, keeping your engine clean. Make sure you get the correct oil filter for your 2018 Altima SR. A high-quality filter ensures that your new oil stays clean and effective for longer.
• Wrench: You'll need a wrench to remove the oil drain plug. The size of the drain plug can vary, so check your owner's manual or use an adjustable wrench. Having the right size wrench will make the job much easier and prevent you from stripping the drain plug.
• Oil Filter Wrench: This special wrench is designed to remove the oil filter. It's usually a cap-type wrench that fits over the end of the filter. Using the correct oil filter wrench is essential for removing the old filter without damaging it or the surrounding components. Trying to remove it with other tools can be messy and frustrating.
• Drain Pan: You'll need a drain pan to catch the old oil. Make sure it's large enough to hold all the oil from your engine (around 5 quarts). A good drain pan will have a wide opening to prevent spills and a spout for easy disposal of the used oil.
• Funnel: A funnel will help you pour the new oil into your engine without making a mess. Choose a funnel with a wide mouth to avoid spills and ensure a smooth pour. A clean funnel is essential to prevent contamination of the new oil.
• Gloves: Trust me, you'll want to wear gloves to protect your hands from the dirty oil. Nitrile gloves are a good choice because they're resistant to oil and chemicals. Wearing gloves will keep your hands clean and prevent any skin irritation.
• Rags or Shop Towels: You'll need rags or shop towels to wipe up any spills. Keep a good supply handy, as oil changes can sometimes get a little messy. Having plenty of rags will help you keep your work area clean and prevent any oil from spreading.
• Jack and Jack Stands (Optional): If you need more clearance to reach the oil drain plug, you can use a jack and jack stands to lift your car. Always use jack stands for safety – never work under a car supported only by a jack. Ensure the jack stands are properly positioned and securely supporting the vehicle before proceeding. Safety should always be your top priority.

With these tools and supplies on hand, you'll be well-prepared to tackle your 2018 Nissan Altima SR oil change. Remember, taking your time and paying attention to detail will ensure a successful and mess-free oil change.

Step-by-Step Guide

Alright, now for the fun part! Follow these steps, and you'll have your oil changed in no time.

1. Warm Up the Engine: Start your engine and let it run for a few minutes. This will warm up the oil, making it flow more easily. However, don't let it get too hot, or you risk burning yourself. A few minutes is usually sufficient to thin out the oil without making it dangerously hot to handle. Always exercise caution when working with a warm engine.
2. Secure the Car: If you're using a jack and jack stands, park your car on a level surface, engage the parking brake, and chock the rear wheels. Then, carefully jack up the front of the car and place the jack stands in the designated locations. Make sure the car is stable before you start working underneath it. Safety is paramount. Double-check that the jack stands are securely supporting the vehicle before proceeding with any work.
3. Locate the Oil Drain Plug: Crawl under the car and find the oil drain plug. It's usually located on the bottom of the oil pan. Place the drain pan directly underneath the drain plug to catch the old oil. Ensure the drain pan is properly positioned to avoid any spills.
4. Remove the Drain Plug: Use your wrench to loosen the drain plug. Once it's loose, carefully unscrew it by hand, being prepared for the oil to start flowing out. Be careful, as the oil might be warm. Let the oil drain completely into the pan. This may take several minutes. Allowing the oil to drain completely ensures that you remove as much of the old, contaminated oil as possible.
5. Remove the Old Oil Filter: Locate the oil filter. It's usually near the engine block. Use your oil filter wrench to loosen the old oil filter. Once it's loose, unscrew it by hand. Be prepared for some oil to spill out, so have a rag handy. Dispose of the old oil filter properly. Some auto parts stores will recycle them for you. Removing the oil filter carefully will prevent any unnecessary mess. Inspect the oil filter mounting surface to ensure it is clean and free of any debris.
6. Install the New Oil Filter: Lightly lubricate the rubber gasket on the new oil filter with fresh oil. This will help create a good seal. Screw the new oil filter onto the engine by hand until it's snug. Then, use your oil filter wrench to tighten it another half to three-quarters of a turn, as recommended by the filter manufacturer. Do not overtighten, as this can damage the filter or the engine. Proper installation of the new oil filter is crucial for preventing leaks and ensuring optimal oil filtration.
7. Reinstall the Drain Plug: Once all the oil has drained, clean the drain plug and install a new crush washer (if applicable). Screw the drain plug back into the oil pan by hand until it's snug. Then, use your wrench to tighten it to the specified torque (check your owner's manual for the correct torque specification). Do not overtighten, as this can damage the oil pan. A properly tightened drain plug is essential for preventing oil leaks. Using a new crush washer ensures a tight seal.
8. Lower the Car: If you used a jack and jack stands, carefully lower the car back to the ground.
9. Add New Oil: Open the hood and locate the oil fill cap. Remove the cap and insert the funnel. Pour in the correct amount of new oil, as specified in your owner's manual (usually around 4.8 quarts for the 2018 Nissan Altima SR). Be careful not to overfill. Use the funnel to prevent any spills. Adding the correct amount of oil is crucial for proper engine lubrication. Double-check your owner's manual for the exact amount of oil required.
10. Check the Oil Level: After adding the oil, replace the oil fill cap. Start the engine and let it run for a minute or two. Then, turn off the engine and wait a few minutes for the oil to settle. Pull out the dipstick, wipe it clean, reinsert it, and then pull it out again to check the oil level. The oil level should be between the minimum and maximum marks on the dipstick. If it's low, add a little more oil. If it's too high, you'll need to drain some out. Maintaining the correct oil level is essential for optimal engine performance and longevity.
11. Check for Leaks: After changing the oil, start the engine and let it run for a few minutes. While the engine is running, check for any leaks around the oil drain plug and the oil filter. If you see any leaks, tighten the drain plug or oil filter as needed. Addressing any leaks promptly will prevent oil loss and potential engine damage. Keep a close eye on these areas for the first few days after the oil change to ensure there are no leaks.
12. Reset the Oil Life Monitor: Most modern cars have an oil life monitor that tells you when it's time to change the oil. After changing the oil, you'll need to reset the oil life monitor. The procedure for resetting the oil life monitor varies depending on the car, so consult your owner's manual for instructions. Resetting the oil life monitor ensures that you receive accurate reminders for future oil changes. This will help you maintain your vehicle's maintenance schedule and prevent any potential issues.

Disposal of Old Oil

Okay, so you've got a pan full of used oil. Don't just dump it down the drain or in your backyard! That's super bad for the environment. Instead, take it to your local auto parts store or recycling center. Most of them will accept used oil for free. They'll recycle it properly, so you can feel good about doing your part to protect the planet. Properly disposing of used oil is crucial for environmental protection. Auto parts stores and recycling centers are equipped to handle used oil safely and responsibly. Make sure to transport the used oil in a sealed container to prevent any spills during transport.

Conclusion

And that's it! You've successfully changed the oil in your 2018 Nissan Altima SR. Give yourself a pat on the back – you just saved some money and learned a valuable skill. Remember to keep up with regular oil changes to keep your Altima running smoothly for years to come. Happy driving!

Changing your oil might seem a bit daunting at first, but with a little practice, you'll become a pro in no time. Not only will you save money on maintenance costs, but you'll also gain a better understanding of how your car works. Regular maintenance, including oil changes, is essential for keeping your 2018 Nissan Altima SR in top condition. By following this guide and taking the time to perform the oil change correctly, you can ensure that your Altima's engine remains healthy and reliable for years to come. So, grab your tools, gather your supplies, and get ready to tackle your next oil change with confidence! You've got this!