What you'll need:
* New oil: Consult your owner's manual for the correct type and amount (typically 5-6 quarts). Use the recommended viscosity (e.g., 5W-30, 10W-30).
* New oil filter: Again, check your owner's manual for the correct filter.
* Oil filter wrench: The type depends on your filter; some require a strap wrench, others a cap wrench.
* Wrench for the drain plug: This is usually a 13mm or 14mm socket wrench. A drain pan is essential.
* Funnel: To pour in the new oil.
* 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.
* Torque wrench (optional but recommended): To tighten the drain plug to the correct specification (found in your owner's manual).
Procedure:
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 to touch.
2. Secure the vehicle: Use a jack and jack stands to lift the front of the truck. Ensure it's stable and secure before proceeding. Alternatively, use ramps.
3. Locate the oil drain plug: It's usually located on the bottom of the oil pan.
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 with your wrench. Let the oil drain completely. This can take 15-20 minutes. Be careful, the oil will be hot.
6. Replace the drain plug: Once the oil has drained, replace the drain plug. Tighten it securely with your wrench. If you have a torque wrench, tighten it to the manufacturer's specified torque (check your owner's manual).
7. Locate the oil filter: It's typically located near the oil pan.
8. Remove the old oil filter: Use the appropriate oil filter wrench to loosen and remove the old filter. Some oil will likely spill, so have rags ready.
9. Lubricate the new oil filter 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 until it's snug. Then tighten it according to the manufacturer's instructions (usually about ¾ to 1 full turn after the gasket contacts the engine).
11. Lower the vehicle: Carefully lower the vehicle using the jack.
12. Add new oil: Using a funnel, pour the correct amount of new oil into the engine (refer to 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 necessary to reach the "full" mark.
14. Run the engine: Run the engine for a few minutes.
15. Check for leaks: Inspect the drain plug and oil filter for leaks.
16. Check the oil level again: After the engine has run for a few minutes and been turned off, recheck the oil level and add more if needed.
17. Dispose of used oil properly: Take the used oil to a recycling center or auto parts store that accepts used oil.
Important Safety Precautions:
* Always work in a well-ventilated area.
* Wear safety glasses and gloves.
* Never work under a vehicle supported only by a jack. Always use jack stands.
* Hot oil can cause serious burns. Allow the oil to cool before handling.
* Dispose of used oil and filter properly.
Remember, this is a general guide. Always refer to your owner's manual for specific instructions and recommendations for your Ford Ranger's year and model. If you are uncomfortable performing this task yourself, take your vehicle to a qualified mechanic.
