2026 GMC Sierra 2500HD/3500HD Oil type

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

  • All (normal temperatures) 5W-30
  • Extreme cold, below −29 °C (−20 °F) 0W-30

2026 GMC Sierra 2500HD/3500HD Owner's Manual, PDF page 288

Use SAE 5W-30 viscosity grade engine oil.Open the manual at this page ↗Added Oct 17, 2026 · Updated
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Oil type · All (normal temperatures) · PDF page 288

Use SAE 5W-30 viscosity grade engine oil.

Oil type · Extreme cold, below −29 °C (−20 °F) · PDF page 288

use SAE 0W-30 oil

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2 values
Applies toValueManual saysPage
All (normal temperatures) 5W-30 “Use SAE 5W-30 viscosity grade engine oil.” PDF page 288 ↗
Extreme cold, below −29 °C (−20 °F) 0W-30 “use SAE 0W-30 oil” PDF page 288 ↗

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Matches your manual5W-30 full synthetic motor oil

For All (normal temperatures)

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Matches your manual0W-30 full synthetic motor oil

For Extreme cold, below −29 °C (−20 °F)

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