Quick answer: Oil and Filter Change on a 2005–2010 Ford Mustang is rated Easy and takes about 30–45 minutes. You'll need 6 tools for this job, and parts cost about $47. This guide walks you through the full job step by step, including the mistakes to avoid.
Oil spec
4.0L V6
Capacity 5.0 qt with filter Viscosity 5W-30, 5W-20
| Part Name |
Part Number |
Price |
Buy |
| Engine oil filter (4.0L V6 or 4.6L V8 application) |
— |
$9.00 |
|
| 5W-30 (4.0L) or 5W-20 (4.6L) motor oil, 5–6 quarts |
— |
$31.00 |
|
| Drain plug washer |
— |
$7.00 |
|
About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.
💡 Pro tip: Order all parts at once to save on shipping
Step-by-Step Instructions
Follow these steps carefully
1
Warm up and identify the correct drain plug
Warm the engine, park level, set the parking brake, and raise the front on jack stands or ramps. Find the engine oil drain plug on the sump — engine pan, not transmission pan. Shut the engine off.
🔧 Mechanic's note — Ray Delgado
I make sure I'm draining the engine oil pan, not the transmission pan — they're close neighbors under there, and I've seen the wrong drain turn into a tow-truck kind of day.
Video at 0:00
2
Drain the oil and remove the filter
Set the drain pan and remove the oil drain plug, letting the 5–6 quart sump empty completely. Remove the spin-on filter on the block's side with a filter wrench. Wipe the mounting boss and verify the old gasket is gone.
Video at 1:30
3
Fit the new filter and drain plug
Oil the new filter's gasket and install it hand-tight plus three-quarter turn. Refit the drain plug carefully by hand, then snug it with a socket. Clean the area so leaks are visible later.
Video at 3:00
4
Inspect the drained oil for contamination
As the oil drains, look for metal flakes, a milky appearance, or a strong fuel smell. Metal means internal wear; milky oil suggests coolant contamination from a head gasket. Catching these early can prevent catastrophic failure.
Video at 2:45
5
Refill with the correct oil
Add the specified oil through the valve cover fill: 5 quarts of 5W-30 for the 4.0L V6, 6 quarts of 5W-20 for the 4.6L V8 — the 4.6L's cam phasers depend on the lighter weight. Refit the fill cap.
🔧 Mechanic's note — Ray Delgado
I get the oil right for the engine — the 4.6L V8's cam phasers are fussy about 5W-20, and I've heard the wrong weight complain at startup.
Video at 4:00
6
Verify and finish
Start the engine, confirm the oil light goes out, and inspect for leaks underneath. Lower the car, recheck the dipstick, and reset the oil life monitor. The job is done when the level is correct and the underside is dry.
Video at 5:00
7
Check other fluids and belts
While the oil drains, inspect the serpentine belt for cracks and check the coolant, power steering, and brake fluid levels. Top up low fluids to the correct specification — this quick check catches problems before they strand you.
Video at 4:15
All Done!
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
- • Overfilling the 4.0L V6, which holds 5 quarts, not 6.
- • Stripping the filter threads by overtightening — hand-tight plus a quarter turn is enough.
- • Using 5W-30 in the 4.6L 3-valve, which specifies 5W-20 for the cam phasers.
- • Draining the transmission by mistake; the 4.0L's oil pan and trans pan look similar from below.
