What you'll need:
* New oil: Consult your owner's manual for the correct type and quantity (usually around 4-5 quarts). Use the recommended weight (e.g., 5W-30, 10W-30).
* New oil filter: Again, check your owner's manual for the correct filter type.
* Oil filter wrench: The correct size for your Blazer's oil filter. A strap wrench is generally preferred as it's less likely to damage the filter.
* Wrench for the drain plug: This is usually a 15mm socket, but double-check your owner's manual.
* Drain pan: Large enough to hold at least 5 quarts of oil.
* Funnel: To make pouring the new oil easier.
* Jack and jack stands (or ramps): To safely lift the vehicle. Never work under a vehicle supported only by a jack.
* Gloves: To keep your hands clean.
* Rags or shop towels: To clean up spills.
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: Use a jack and jack stands (or ramps) to lift the front of the Blazer securely. Ensure it's stable before proceeding.
3. Locate the oil drain plug: This is usually located on the bottom of the oil pan, towards the front of the engine.
4. Position the drain pan: Place the drain pan under the drain plug.
5. Remove the drain plug: Carefully loosen and remove the drain plug using the correct wrench. The oil will start to flow out, so be prepared. Let it drain completely (this can take 15-20 minutes).
6. Replace the drain plug: Once the oil has finished draining, reinstall the drain plug and tighten it securely (don't overtighten!).
7. Locate the oil filter: This is usually located on the side of the engine block.
8. Remove the oil filter: Use the oil filter wrench to loosen and remove the old oil filter. Be prepared for some oil to spill out.
9. Lubricate the new filter's gasket: Lightly lubricate the rubber gasket on the new oil filter with fresh oil.
10. Install the new oil filter: Screw the new oil filter on by hand, tightening it according to the manufacturer's instructions (usually about ¾ to 1 full turn after the gasket makes contact).
11. Lower the vehicle: Carefully lower the vehicle using the jack.
12. Add new oil: Using the funnel, carefully pour the correct amount of new oil into the engine. Check your owner's manual for the exact quantity.
13. Check the oil level: Use the dipstick to check the oil level. Add more oil if needed, ensuring it's within the "full" marks.
14. Run the engine: Start the engine and let it run 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, turn it off, wait a few minutes, and recheck the oil level with the dipstick. Add more if necessary.
17. Dispose of used oil properly: Take the used oil to a recycling center or auto parts store that accepts used oil.
Important Considerations:
* Owner's Manual: Always consult your owner's manual for specific instructions and recommendations for your 2000 Chevy S-10 Blazer.
* Safety: Never work under a vehicle supported only by a jack. Use jack stands for safety.
* Disposal: Dispose of used oil and filter properly.
This guide provides general instructions. If you are uncomfortable performing this task yourself, take your Blazer to a qualified mechanic.