CAR SPEC SHEET

2005 GMC TopKick Oil Capacity

2005 GMC TopKick oil capacity: 14.6 quarts (6.6L DURAMAX 6600) or 10.0 quarts (8.1L Vortec 8100 MD Gas) with filter. From the owner's manual, PDF page 318.

2005 GMC TopKick, representative photo
Shown: a 2005 GMC TopKick (same generation). Photo: Elise240SX, CC BY-SA 4.0
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Depends on your engine. Choose yours, or compare them here.

  • 6.6L DURAMAX 6600 14.6 quarts with filter
  • 8.1L Vortec 8100 MD Gas 10.0 quarts with filter

2005 GMC TopKick Owner's Manual, PDF page 318

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

Oil capacity (with filter) · 6.6L DURAMAX 6600 · PDF page 318

14.6 quarts

Oil capacity (with filter) · 8.1L Vortec 8100 MD Gas · PDF page 318

10.0 quarts

Oil type SAE 5W-30 / SAE 0W-30 Which one is yours →

2005 GMC TopKick, representative photo
Shown: a 2005 GMC TopKick (same generation). Photo: Elise240SX, CC BY-SA 4.0
See every quote (2 values)

All versions

2 values
Applies toValueManual saysPage
6.6L DURAMAX 6600 14.6 quartswith filter “14.6 quarts” PDF page 318 ↗
8.1L Vortec 8100 MD Gas 10.0 quartswith filter “10.0 quarts” PDF page 318 ↗

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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