Before you begin:
* Gather your supplies: New oil (check your owner's manual for the correct type and amount), new oil filter, wrench for the oil drain plug (usually a 13mm or 15mm), wrench or socket for the oil filter (size varies), drain pan, funnel, jack and jack stands (highly recommended for safety), rags or paper towels, and gloves.
* Warm up the engine: Run the engine for 5-10 minutes to warm the oil, making it flow more easily. Don't let it get too hot, though.
* Safety first: Always work in a well-ventilated area. Use jack stands to support the vehicle securely – never rely on the jack alone. Wear gloves to protect your hands.
Procedure:
1. Locate the oil drain plug: This is usually on the bottom of the oil pan, towards the front of the engine.
2. Position the drain pan: Place the drain pan under the oil drain plug.
3. Remove the drain plug: Carefully loosen and remove the drain plug with your wrench. Be prepared for hot oil to come out. Let the oil drain completely; this may take 15-20 minutes.
4. Replace the drain plug: Once the oil has drained, carefully replace the drain plug and tighten it securely with your wrench. Don't overtighten.
5. Locate the oil filter: The location varies slightly depending on the year and engine. It's usually on the side of the engine block.
6. Remove the old oil filter: Use your wrench or filter socket to loosen and remove the old oil filter. Some oil will likely spill, so have rags ready.
7. Lubricate the new oil filter gasket: Lightly lubricate the rubber gasket on the new oil filter with fresh oil.
8. Install the new oil filter: Screw on the new oil filter by hand, tightening it according to the manufacturer's instructions (usually about ¾ to 1 full turn after the gasket contacts the engine).
9. Add new oil: Using a funnel, carefully pour the correct amount of new oil into the engine (refer to your owner's manual for the precise quantity).
10. Check the oil level: Use the dipstick to check the oil level. Add more oil if necessary until it reaches the "full" mark.
11. Start the engine: Run the engine for a few minutes.
12. Check for leaks: Inspect the area around the drain plug and oil filter for any leaks.
13. Check the oil level again: After running the engine, turn it off and wait a few minutes for the oil to settle. Recheck the oil level and add more if needed.
14. Dispose of used oil properly: Take the used oil and filter to a recycling center or auto parts store that accepts them.
Important Notes:
* Engine type: The specific location of the drain plug and oil filter will vary slightly depending on the engine (2.3L or 3.0L). Consult your owner's manual or a repair manual for your specific Aerostar year and engine.
* Torque specifications: While you don't need a torque wrench for this job, avoid over-tightening the drain plug and oil filter.
* Owner's manual: Your owner's manual is the best source of information for your specific vehicle. It will provide the correct oil type, quantity, and filter specifications.
This is a general guide. If you're not comfortable performing this task yourself, it's best to take your Aerostar to a qualified mechanic. Improper oil changes can damage your engine.
