Engine oil
5.3 US qt (5.0 L) with filter (GM TechLink MY2025 chart)
Notes
CT5 Sport RWD 6DD79 1SE LSY MQ2 MY2025 US only. US MY2025 CT5 Sport equipment group 1SE, model 6DD79 (4-door sedan); standard LSY/MQ2 verified in own-model order-guide Mechanical column E and MY2025 VIN p.12 series DP. Excludes optional F46. No sibling trim, other configuration, optional-engine, body, drive, year or market inference.
Coolant
10.4 L (11.0 US qt), approximately, for the entire engine cooling system (2.0L L4)
Notes
CT5 Sport RWD 6DD79 1SE LSY MQ2 MY2025 US only. US MY2025 CT5 Sport equipment group 1SE, model 6DD79 (4-door sedan); standard LSY/MQ2 verified in own-model order-guide Mechanical column E and MY2025 VIN p.12 series DP. 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 Sport RWD 6DD79 1SE LSY MQ2 MY2025 US only. US MY2025 CT5 Sport equipment group 1SE, model 6DD79 (4-door sedan); standard LSY/MQ2 verified in own-model order-guide Mechanical column E and MY2025 VIN p.12 series DP. 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 Sport RWD 6DD79 1SE LSY MQ2 MY2025 US only. US MY2025 CT5 Sport equipment group 1SE, model 6DD79 (4-door sedan); standard LSY/MQ2 verified in own-model order-guide Mechanical column E and MY2025 VIN p.12 series DP. Excludes optional F46. No sibling trim, other configuration, optional-engine, body, drive, year or market inference.