Replace engine oil and oil filter on the 3.5L EcoBoost V6 engine. This routine maintenance procedure ensures proper engine lubrication and longevity.

Warnings

Tools required

Parts

• Engine oil filter × 1 — Motorcraft FL-910S or equivalent
• Oil drain plug crush washer × 1 — Motorcraft N805733-S300

Fluids

• Motorcraft 5W-20 Synthetic Blend — 6 qt

Preparation

1. Park vehicle on level surface and engage parking brake
2. Run engine for 2-3 minutes to warm oil slightly for easier draining, then shut off and allow to cool for 30 minutes
3. Gather all tools, parts, and fluids before starting
4. Raise front of vehicle with floor jack and secure on jack stands rated for vehicle weight
5. Remove engine splash shield or skid plate if equipped using 10mm socket

Procedure

1. 1

   Position drain pan and remove drain plug
   Locate the oil pan drain plug on the passenger side of the oil pan toward the rear. Position drain pan beneath drain plug. Using a 17mm socket or wrench, loosen the drain plug counterclockwise. Remove the drain plug by hand for the last few turns and pull away quickly to avoid oil contact. Allow oil to drain completely for at least 5 minutes.
2. 2

   Inspect and prepare drain plug
   While oil drains, inspect the drain plug threads and magnetic tip for metal debris. Remove and discard the old crush washer from the drain plug. Install the new crush washer onto the drain plug, ensuring it seats properly against the plug flange.
3. 3

   Reinstall oil drain plug
   Once oil flow has stopped completely, wipe the drain plug area on the oil pan with a clean rag. Thread the drain plug with new crush washer into the oil pan by hand until seated. Tighten to specification using a torque wrench.
   Torque spec

   Oil Drain Plug35 Nm (26 lb-ft)
4. 4

   Locate and access oil filter
   The oil filter is located on the driver's side of the engine block, mounted horizontally. For spin-on filters, access is from underneath. For cartridge-type filters, access is from above near the front of the engine. Position drain pan beneath filter to catch residual oil.
5. 5

   Remove oil filter
   For spin-on filter: Using a 74mm or 14-flute oil filter wrench, turn filter counterclockwise to loosen. Unthread by hand and tilt to minimize spillage. For cartridge-type: Use appropriate socket to remove filter housing cap counterclockwise, then extract filter cartridge. Expect approximately 8-12 ounces of oil to drain from filter area.
6. 6

   Prepare new oil filter
   For spin-on filter: Apply a light coat of clean engine oil to the rubber gasket on the new filter. Verify old gasket was removed with old filter. For cartridge-type: Install new O-rings on filter housing cap if included with filter. Lubricate O-rings with clean engine oil. Insert new filter cartridge into housing.
7. 7

   Install new oil filter
   For spin-on filter: Thread new filter onto engine by hand clockwise until gasket contacts mounting surface, then continue turning 3/4 turn additional. For cartridge-type: Thread filter housing cap by hand until seated, then torque to specification using appropriate socket and torque wrench.
   Torque spec

   Oil Filter Housing Cap25 Nm (18 lb-ft)
8. 8

   Reinstall skid plate and lower vehicle
   If skid plate or splash shield was removed, reinstall using original fasteners and torque to specification. Lower vehicle from jack stands safely. Remove jack stands and lower jack completely.
9. 9

   Add new engine oil
   Open hood and locate oil filler cap on driver's side valve cover marked with oil can symbol. Remove filler cap. Insert funnel and add 5.5 quarts of Motorcraft 5W-20 synthetic blend engine oil. Wait 2 minutes for oil to settle, then add remaining 0.5 quarts gradually while checking dipstick.
10. 10

    Check oil level and secure cap
    Remove dipstick, wipe clean, reinsert fully, then remove again to check level. Oil should be between MIN and MAX marks. Add small amounts if needed. Once level is correct, reinstall oil filler cap and tighten hand-tight (do not overtighten plastic cap).
11. 11

    Start engine and check for leaks
    Start engine and allow to idle for 60 seconds. Oil pressure light should extinguish within 5 seconds. Monitor underneath vehicle and around oil filter for any leaks. If leaks are observed, shut off engine immediately and inspect drain plug and filter installation.
12. 12

    Verify oil level after circulation
    Shut off engine and wait 5 minutes for oil to return to pan. Recheck oil level using dipstick. Top off if necessary to bring level to MAX mark. Dispose of used oil and filter properly at a recycling center.

Reassembly

1. Ensure oil filler cap is properly seated to prevent oil vapor leaks
2. Verify skid plate or splash shield is securely fastened if equipped
3. Double-check that no tools or rags were left in engine bay

Verification

• Check oil level on dipstick with engine off and vehicle level - should read at or near MAX mark
• Inspect ground beneath vehicle after 24 hours of driving for any oil drips or leaks
• Confirm oil pressure warning light does not illuminate during startup and operation
• Record mileage and date of oil change for maintenance tracking

More procedures for this vehicle