2. Turn off the engine and allow it to cool down.
3. Crawl underneath the car and locate the oil filter. It will be a cylindrical-shaped object with a black cap. On the 1991 Subaru Justy, it is located on the driver's side of the engine, near the bottom.
4. Place an oil pan underneath the oil filter to catch any dripping oil.
5. Use an oil filter wrench to loosen the oil filter. Be careful not to spill any oil.
6. Unscrew the oil filter by hand and remove it from the engine.
7. Inspect the old oil filter for any damage or debris.
8. Apply a thin coat of new oil to the gasket of the new oil filter.
9. Screw the new oil filter onto the engine by hand until it is snug.
10. Use the oil filter wrench to tighten the oil filter until it is snug.
11. Start the engine and let it run for a few minutes. Check for any leaks.
12. Turn off the engine and check the oil level. Add more oil if necessary.
