Cadillac · CT5-V V-Series RWD 6DE79 1SF LGY MHS MY2025 US · 2025

Cadillac CT5 CT5-V V-Series RWD 6DE79 1SF LGY MHS MY2025 US Coolant capacity

What coolant specification or capacity applies to the Cadillac CT5 CT5-V V-Series RWD 6DE79 1SF LGY MHS MY2025 US?12.1 L (12.8 US qt), approximately, for the entire engine cooling system (3.0L V6, rear-wheel drive)

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At a glance

Vehicle
Cadillac CT5 CT5-V V-Series RWD 6DE79 1SF LGY MHS MY2025 US
Coolant capacity
12.1 L (12.8 US qt), approximately, for the entire engine cooling system (3.0L V6, rear-wheel drive)
Manufacturer source
General Motors
Verified

Own-model capacity table, Engine Cooling System / 3.0L V6 Engine with Rear Wheel Drive row. The separate 3.1 L intercooler circuit (RWD) is not added; AWD and other-engine rows do not apply.

Reference details

Check before you buy or service: CT5-V V-Series RWD 6DE79 1SF LGY MHS MY2025 US only. US MY2025 CT5 V-Series equipment group 1SF, model 6DE79 (4-door sedan); standard LGY/MHS verified in own-model order-guide Mechanical column D and MY2025 VIN p.12 series DR. Excludes optional F46. No sibling trim, other configuration, optional-engine, body, drive, year or market inference.

Source

General Motors manufacturer referenceGeneral Motors
Open manufacturer source ↗

Last verified by CarFactBook:

Same question · different chassis

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Coolant capacity is published for these other exact codes. Compare the sourced answer and vehicle scope before using a value.

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The same question, different cars

Manufacturer documentation can give different answers for different engines, configurations and model codes. These are independently sourced entries for the same reference topic, not interchangeable parts or service instructions.

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Coolant capacityEngine: 5.3 L cold-climate / 4.5 L non-cold-climate · inverter: 1.6 LCheck the exact variant and source limitationsToyota Motor Corporation · verified 2026-10-02
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What owners usually check next

Engine oil capacity6.0 US qt (5.7 L) with filter (GM TechLink MY2025 chart)12V battery12-volt Absorbed Glass Mat (AGM) battery; refer to the original battery label replacement numberSmart-key batteryCR2450 lithium or equivalent battery; insert positive side toward the back coverTransmission fluidDEXRON ULV automatic transmission fluidFuel tank capacity66.0 L (17.5 US gal), approximatelyEngine codeLGY, GM engine RPO (GM TechLink MY2025 chart)Engine displacement3.0 L (GM TechLink MY2025 chart)Powertrain designationLGY 3.0L twin-turbocharged V6; MHS ten-speed automatic; RWD (RWL)

View every owner answer for Cadillac CT5 CT5-V V-Series RWD 6DE79 1SF LGY MHS MY2025 US →