Engine oil
6.0 US qt (5.7 L) with filter (GM TechLink MY2025 chart)
Notes
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.
Coolant
12.1 L (12.8 US qt), approximately, for the entire engine cooling system (3.0L V6, rear-wheel drive)
Notes
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.
Transmission fluid
DEXRON ULV automatic transmission fluid
Notes
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.
Fuel tank
66.0 L (17.5 US gal), approximately
Notes
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.