Oil Change 04-07 Subaru WRX/STi DIY:

If you’ve never changed oil on a 04-07 WRX STi this guide will take your step by step through the oil change process. This guide should be applicable to most turbocharged Subaru cars throughout the years. Check at the end of the post for part numbers, oil, filters and tools needed to complete an oil change.

1.) Get you car on a hard, even, flat surface and get your car up on jack stands. I put mine up on 4 jack stands, so that later on when you are draining the oil, the car is already level and will drain properly.
Where to jack and put jack stands has been debated many times before.

2.) Once you get your car up on 4 jack stands, it is time to remove the brush guard. There are 5 bolts to remove and they are all 12mm.

3.) Now that you got your brush guard off its time to get under the car and start your oil change. You should take a second and locate the oil filter and the oil drain plug.

4.) If your engine is cool, go ahead and start it up and let it run for about 5 minutes. This helps with the oil change. The oil gets warm and drains much easier and quicker.