CAR SPEC SHEET

2020 Cadillac CT6 Coolant

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

  • 3.6L V6 Engine 10.4 qt capacity
  • 3.6L V6 Engine with Rear A/C 12.0 qt capacity
  • 4.2L V8 Engine 11.8 qt capacity
  • 4.2L V8 Engine with Rear A/C 13.6 qt capacity
  • 4.2L V8 Engine Intercoolers 2.8 qt capacity

2020 Cadillac CT6 Owner's Manual, PDF page 374

10.4 qtOpen the manual at this page ↗Added Oct 17, 2026 · Updated
See where it's printed

Coolant (capacity) · 3.6L V6 Engine · PDF page 374

10.4 qt

Coolant (capacity) · 3.6L V6 Engine with Rear A/C · PDF page 374

12.0 qt

Coolant (capacity) · 4.2L V8 Engine · PDF page 374

11.8 qt

Coolant (capacity) · 4.2L V8 Engine with Rear A/C · PDF page 374

13.6 qt

Coolant (capacity) · 4.2L V8 Engine Intercoolers · PDF page 374

2.8 qt

All versions

5 values
Applies toValueManual saysPage
3.6L V6 Engine 10.4 qtcapacity “10.4 qt” PDF page 374 ↗
3.6L V6 Engine with Rear A/C 12.0 qtcapacity “12.0 qt” PDF page 374 ↗
4.2L V8 Engine 11.8 qtcapacity “11.8 qt” PDF page 374 ↗
4.2L V8 Engine with Rear A/C 13.6 qtcapacity “13.6 qt” PDF page 374 ↗
4.2L V8 Engine Intercoolers 2.8 qtcapacity “2.8 qt” PDF page 374 ↗

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