Vehicle database
CADILLAC CT4
1st / 3rd generation / 2021-2024 / Sedan
North America / selected global marketsNorth America / ChinaNorth America, China, and selected global markets with minor variationsCoverage: expanded
Year and trim selector
Choose the exact year and trim to see engine, oil and service details.
2021 CADILLAC CT4 LSY/LGW (1GYFZCR41MF000000)
1GYFZCR41MF000000 / LSY, LGW / 2.0L Turbo I4 (LSY) and 2.7L Turbo I4 (LGW) available depending on market and trim
GoldOpen details
Oil type: SAE 5W-30 dexos1 Gen 2 synthetic oilOil capacity: Approximately 5.5 liters including filter; service-fill capacity includes oil filter changeRelated: LSY, LGW
2022 CADILLAC CT4 LFV/LTG (A1)
A1 / LFV, LTG / Two main engines globally: a 2.0 L turbo inline-4 (LFV) available in North America and China; a 2.7 L turbo inline-4 (LTG) available primarily in higher trims and some markets.
GoldOpen details
Oil type: SAE 5W-30 synthetic, GM dexos1 Gen 2 or equivalentOil capacity: Approx. 5.7 liters (service fill, includes filter change)Related: CT4 2.0T, CT4-V 2.7T (North America)
2024 CADILLAC CT4 LSY/LTG (1YG5)
1YG5 / LSY, LTG / Turbocharged 4-cylinder engines offered, with 2.0L LSY inline-4 in base and mid trims, and optional 2.7L LTG inline-4 for high-performance CT4-V Blackwing variant in select markets.
GoldOpen details
Oil type: SAE 5W-30 GM Dexos1 Gen 2 synthetic oilOil capacity: Approx. 5.7 liters (includes service-fill with filter replacement)Related: LSY, LTG
Engine codes by year
| Year | Trim | Engine codes | Displacement | Fuel system |
|---|---|---|---|---|
| 2021 | technical-profile | LSY, LGW | 1998 cc (2.0L), 2694 cc (2.7L) | Direct Injection Turbocharged Gasoline |
| 2022 | technical-profile | LFV, LTG | 1998 cc (LFV), 2693 cc (LTG) | Direct injection turbocharged petrol engines |
| 2024 | technical-profile | LSY, LTG | 2.0L and 2.7L | Direct injection |
Oil capacity by engine
| Year | Engine codes | Oil type | Oil capacity | Fluid |
|---|---|---|---|---|
| 2021 | LSY, LGW | SAE 5W-30 dexos1 Gen 2 synthetic oil | Approximately 5.5 liters including filter; service-fill capacity includes oil filter change | GM DEXRON VI or equivalent |
| 2022 | LFV, LTG | SAE 5W-30 synthetic, GM dexos1 Gen 2 or equivalent | Approx. 5.7 liters (service fill, includes filter change) | GM Dexron-VI automatic transmission fluid |
| 2024 | LSY, LTG | SAE 5W-30 GM Dexos1 Gen 2 synthetic oil | Approx. 5.7 liters (includes service-fill with filter replacement) | GM-approved synthetic ATF |
Technical specifications
- Engines: LSY, LGW, LFV, LTG
- Transmissions: Not generally available in North America for 2021 CT4, 8-speed automatic with manual shift mode and paddle shifters, GM DEXRON VI or equivalent, 6-speed manual available in select trims/markets, 8-speed automatic with manual shift mode, GM Dexron-VI automatic transmission fluid, 6-speed manual available on select trims and markets, 10-speed automatic (standard on most trims)
- Tire sizes: 235/45R18 (base), optional 18- or 19-inch wheels, 235/40R18, 235/35R19 (optional), 235/40R18 (base), 245/35R19 (performance trims)
- Bolt pattern: Verify by exact trim and wheel package
- Wheel torque: Verify by VIN and wheel package
- Battery: Verify by engine, market and equipment package
Fluids and service data
- Engine oil: SAE 5W-30 dexos1 Gen 2 synthetic oil / SAE 5W-30 synthetic, GM dexos1 Gen 2 or equivalent / SAE 5W-30 GM Dexos1 Gen 2 synthetic oil
- Transmission fluid: GM DEXRON VI or equivalent / GM Dexron-VI automatic transmission fluid / GM-approved synthetic ATF
- Coolant: Approx. 8.5 liters / Approx. 9.5 liters / About 7.7 liters
- Brake fluid: DOT 4 / DOT 3 or DOT 4 as specified by owner manual
Known problems
- Minor turbo lag on 2.0L engine reported
- Coolant leaks rare but reported on older production batches
- Early model software bugs resolved by updates
- Turbo system related minor issues under warranty period
- Occasional infotainment glitches reported
- Turbocharger heat soak in high-performance models