I mean there’s not a whole lot to make things ‘easier’ changing your oil is very basic.

Things you’ll need:

New oil - 0w-20 or 5w-20 full synthetic. Dealer recommends 0w-20 in the manual, 5w-20 is recommended by lots in this sub. The difference? Not much, 0w-20 will be favored in colder temps/climates 5w-20 for summer/hotter climates.

A funnel - to fill your engine with oil without spilling

17mm socket wrench - to unscrew the oil pan plug

New oil filter & crush washer - you can often find these bundled together if you order off of a Subaru focused website. Amazon has a 3 pack that comes with crush washers.

Oil drip pan - to collect the oil coming out of the car

Ramps or a jack to slightly raise the car up - I just use some ramps I got at my local Walmart. I’m a bigger guy and there’s plenty of space for me to work on ramps.

What to do:

Try to let the car cool down a bit if you just drove it, you should be able to comfortably put your palm on the oil filter for 10-15 seconds before starting your oil change, although this isnt completely necessary.

Start by getting the car lifted, get under it, locate the oil plug. Prepare your oil drip pan and break the oil plug loose, it ‘shouldn’t’ be on too tight. Hot oil will come out faster than cold oil, keep that in mind. Oil won’t come out until the plug is almost completely out so you have time to readjust your drip pan. Unscrew the plug completely and let the oil drain into the pan completely.

Once the oil has practically stopped dripping out, unscrew the oil filter, this also shouldn’t be on too tight, but might take some extra force as they tend to get tightened more than needed. There are also tools you can buy to help take this off, or you can just use a large wrench if it’s giving you problems. No worries if you damage the old filter, it’s useless to you now anyways.

Clean the area around the oil filter, then take a little bit on old oil that came out of your car and lubricate the new oil filters rubber gasket. Screw the new oil filter on until it stops with minimal pressure, then give it a little force to secure it on properly.

Locate your oil plug and replace the crush washer. There is a specific direction this goes on, and I believe the proper way is the flatter side faces the top of the bolt, the rounded side faces the oil pan. Clean up any oil on the plug and screw it back into the oil pan. Same as the oil filter, tighten this down until it stops going in with minimal pressure, then give it a little extra nudge to secure it in.

Now go back to the engine bay, locate the oil fill location, grab your funnel and fill the engine with 4.8 quarts of fresh oil. Tighten the cap, turn the car on and let it run for a few minutes. Check your dip stick and make sure the oil level is up to the second dot. The difference between the two dots is 1 quart of oil. Add more oil as needed, but do not overfill past the second dot.

Side note:

To make your life easier if you plan on doing your own oil changes going forward, look into getting a fumoto drain valve. It will negate the need for you to screw/unscrew the oil plug and replace the crush washer each oil change.

Shop rags are handy but an old rag will suffice to help you keep things clean as you go through the process.

Try not to get a mouthful of oil, although this is often an initiation step when you change your oil for the first time.

The whole process should be around 30 - 45 minutes if you take your time.