CAR SPEC SHEET

2005 Cadillac STS Oil Capacity

2005 Cadillac STS oil capacity: 6.0 quarts (3.6L V6) or 8.0 quarts (4.6L V8) with filter. From the owner's manual, PDF page 394.

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Depends on your engine. Choose yours, or compare them here.

  • 3.6L V6 6.0 quarts with filter
  • 4.6L V8 8.0 quarts with filter

2005 Cadillac STS Owner's Manual, PDF page 394

6.0 quartsOpen the manual at this page ↗Added Oct 21, 2026 · Updated
See where it's printed

Oil capacity (with filter) · 3.6L V6 · PDF page 394

6.0 quarts

Oil capacity (with filter) · 4.6L V8 · PDF page 394

8.0 quarts

Oil type GM4718M Details →

See every quote (2 values)

All versions

2 values
Applies toValueManual saysPage
3.6L V6 6.0 quartswith filter “6.0 quarts” PDF page 394 ↗
4.6L V8 8.0 quartswith filter “8.0 quarts” PDF page 394 ↗

Scroll the table to see the quote and page →

Check the level before you drive

  1. Park on level ground. Turn off the engine and follow the waiting period in your owner's manual.
  2. Pull, wipe, and reinsert the dipstick. Use a clean cloth, then push the dipstick all the way back in.
  3. Read the level between the marks. Pull it out again. The oil should sit between the upper and lower marks.
  4. Top up a little at a time, then recheck. Use the specified oil. Don't fill above the upper mark.

A quick level check, not a full oil-change guide. Follow your manual's procedure.

Confirm with your own manual, dipstick or door-jamb label.
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