CAR SPEC SHEET

2020 Cadillac CT6 Oil type

Change year

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

  • 3.6L V6 Engine 5W-30
  • 3.6L V6 Engine, extreme cold below −29 °C (−20 °F) 0W-30
  • 4.2L V8 Twin Turbo (LTA) Engine 0W-40

2020 Cadillac CT6 Owner's Manual, PDF page 280

Use SAE 5W-30 viscosity grade engineOpen the manual at this page ↗Added Oct 17, 2026 · Updated
See where it's printed

Oil type · 3.6L V6 Engine · PDF page 280

Use SAE 5W-30 viscosity grade engine

Oil type · 3.6L V6 Engine, extreme cold below −29 °C (−20 °F) · PDF page 280

(−20 °F), an SAE 0W-30 oil may be

Oil type · 4.2L V8 Twin Turbo (LTA) Engine · PDF page 280

Use SAE 0W-40 viscosity grade

See every quote (3 values)

All versions

3 values
Applies toValueManual saysPage
3.6L V6 Engine 5W-30 “Use SAE 5W-30 viscosity grade engine” PDF page 280 ↗
3.6L V6 Engine, extreme cold below −29 °C (−20 °F) 0W-30 “(−20 °F), an SAE 0W-30 oil may be” PDF page 280 ↗
4.2L V8 Twin Turbo (LTA) Engine 0W-40 “Use SAE 0W-40 viscosity grade” PDF page 280 ↗

Scroll the table to see the quote and page →

Get the right part

Matches your manual5W-30 full synthetic motor oil

For 3.6L V6 Engine

Shop on Amazon
Matches your manual0W-30 full synthetic motor oil

For 3.6L V6 Engine, extreme cold below −29 °C (−20 °F)

Shop on Amazon
Matches your manual0W-40 full synthetic motor oil

For 4.2L V8 Twin Turbo (LTA) Engine

Shop on Amazon

Search links. Check the listing matches your vehicle and version. As an Amazon Associate we earn from qualifying purchases.

Confirm with your own manual, dipstick or door-jamb label.
Report a problem with this page →