What you'll need:
* New oil: Refer to your owner's manual for the correct type and quantity (usually 4-5 quarts for a V6, more for a V8).
* New oil filter: Again, check your manual for the correct filter number.
* Oil filter wrench: The type depends on your oil filter; some are cap-type, others require a strap wrench.
* Wrench for drain plug: Usually a 13mm or 15mm socket wrench. Check your manual.
* Drain pan: To catch the old oil.
* Funnel: To pour in the new oil.
* Jack and jack stands (or ramps): Essential for safe and proper access to the drain plug. Never work under a car supported only by a jack.
* Gloves: To protect your hands.
* Rags or paper towels: To clean up spills.
* Torque wrench (optional but recommended): To tighten the drain plug to the correct specification, preventing leaks.
Steps:
1. 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.
2. Secure the vehicle: Park on a level surface, engage the parking brake, and use jack stands to lift the car securely after jacking it up.
3. Locate the oil drain plug: It's usually on the bottom of the oil pan.
4. Position the drain pan: Place it under the drain plug.
5. Remove the drain plug: Carefully loosen and remove the drain plug with the appropriate wrench. Let the oil drain completely; this can take 15-20 minutes.
6. Locate the oil filter: Usually found near the oil drain plug.
7. Remove the oil filter: Use the appropriate oil filter wrench to loosen and remove the old filter. Be prepared for some oil to spill.
8. Lubricate the new oil filter gasket: Lightly lubricate the rubber gasket on the new filter with fresh oil.
9. Install the new oil filter: Screw on the new filter by hand until snug. Tighten it further according to the instructions on the filter (usually about ¾ to 1 full turn after it's snug).
10. Replace the drain plug: Once the oil has finished draining, reinstall the drain plug. Tighten it to the correct torque specification (consult your owner's manual). Don't overtighten!
11. Lower the vehicle: Carefully lower the vehicle using the jack.
12. Add new oil: Using a funnel, pour in the correct amount of new oil as specified in your owner's manual.
13. Check the oil level: Use the dipstick to check the oil level. Add more oil if necessary to reach the "full" mark.
14. Run the engine: Run the engine for a few minutes.
15. Check for leaks: Inspect the area around the drain plug and oil filter for any leaks.
16. Check the oil level again: After running the engine, let it sit for a few minutes, then check the oil level again and add more if needed.
17. Dispose of the old oil properly: Take the old oil to a recycling center or auto parts store that accepts used oil.
Important Notes:
* Always refer to your owner's manual for specific instructions and torque specifications.
* Be careful not to burn yourself on hot oil or engine parts.
* Dispose of used oil and filter responsibly.
* If you are unsure about any step, consult a professional mechanic.
This guide provides a general overview. Variations might exist depending on the specific model of your 1994 Oldsmobile 88 Royale. Always prioritize safety and refer to your owner's manual for the most accurate information.
