Vehicle database
CADILLAC XLR
First Generation / XLR / 2004-2008 / 2-door convertible coupe
North America / select global marketsCoverage: expanded
Year and trim selector
Choose the exact year and trim to see engine, oil and service details.
2004 CADILLAC XLR LY2 (GMXLR1)
GMXLR1 / LY2 / Northstar 4.6L DOHC V8 aluminum block engine
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Oil type: 5W-30 synthetic engine oil meeting GM Dexos1 specificationOil capacity: 7.1 liters (7.5 quarts) service-fill including filter changeRelated: P0300, P0420, P0171, P0455
2008 CADILLAC XLR LS2 (XLR)
XLR / LS2 / 4.6L Northstar V8 (LS2 GM engine) naturally aspirated
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Oil type: GM Dexos1 Gen 2 5W-30 synthetic or equivalentOil capacity: 6.0 liters (6.3 quarts) including filter, service-fillRelated: VINs starting with 1G6YX36A, LS2 engine code (GM)
Engine codes by year
| Year | Trim | Engine codes | Displacement | Fuel system |
|---|---|---|---|---|
| 2004 | technical-profile | LY2 | 4.6 L (4600 cc) | Sequential multi-port fuel injection |
| 2008 | technical-profile | LS2 | 4564 cc | Sequential multi-port fuel injection |
Oil capacity by engine
| Year | Engine codes | Oil type | Oil capacity | Fluid |
|---|---|---|---|---|
| 2004 | LY2 | 5W-30 synthetic engine oil meeting GM Dexos1 specification | 7.1 liters (7.5 quarts) service-fill including filter change | GM Type 39028173 or equivalent |
| 2008 | LS2 | GM Dexos1 Gen 2 5W-30 synthetic or equivalent | 6.0 liters (6.3 quarts) including filter, service-fill | GM ATF Dexron VI |
Technical specifications
- Engines: LY2, LS2
- Transmissions: Not available, 5-speed GM 5L50-E automatic transmission, GM Type 39028173 or equivalent, 5-speed Hydra-Matic 5L40-E automatic, GM ATF Dexron VI
- Tire sizes: P245/45ZR18 front, P275/40ZR19 rear, P245/40ZR18 front, P275/35ZR19 rear
- 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: 5W-30 synthetic engine oil meeting GM Dexos1 specification / GM Dexos1 Gen 2 5W-30 synthetic or equivalent
- Transmission fluid: GM Type 39028173 or equivalent / GM ATF Dexron VI
- Coolant: 11.2 liters (11.8 quarts) / approximately 12.5 liters (3.3 gallons)
- Brake fluid: DOT 3 or DOT 4 / DOT 3 or equivalent
Known problems
- Timing belt replacement interval critical at 60,000 miles
- Occasional issues with Northstar cooling system thermostat
- LS2 cylinder head gasket leaks
- Cooling system overheating under high load