The 2008 Acura TL uses a 3.2-liter V6 that requires 5W-20 engine oil, with a capacity of about 4.5 quarts including the filter. Use an oil that meets API and ILSAC standards and Honda/Acura specifications.
Overview: The 2008 TL’s lubrication needs are straightforward but precise, as with most Honda/Acura products. Getting the viscosity and quality right protects the engine’s longevity, performance, and fuel economy. The guidance below reflects official recommendations and common maintenance practices.
Oil type and specifications
Below are the key points that cover recommended viscosity, alternatives, and certification standards for the 2008 TL.
- Viscosity: 5W-20 is the standard grade for the 3.2L V6 in the 2008 TL. Synthetic oil is preferred for protection and longer drain intervals.
- Alternative viscosity: If 5W-20 is unavailable, 5W-30 may be acceptable in very hot climates or under certain conditions, but always confirm with the owner's manual before using it long-term.
- Oil type and standards: Use motor oil that meets API SM/SL or newer and ILSAC GF-4 or newer. Honda/Acura Genuine Motor Oil or a reputable brand that meets these specs is recommended.
- Capacity: The engine oil capacity is approximately 4.5 quarts (4.3 liters) with a full oil filter change. Always replace the oil filter during a change.
- Brand and quality note: For best results, choose a synthetic or synthetic-blend formulation that explicitly meets the above specs and is appropriate for the vehicle’s climate and driving style.
Conclusion: Verify the exact grade and capacity in your owner's manual or with a dealer if you’re unsure, as configurations can vary and climate can influence the best choice.
Climate and maintenance considerations
Oil viscosity and performance can depend on temperature and driving conditions. In typical conditions, 5W-20 synthetic or synthetic-blend oil provides good cold-start protection and fuel efficiency. In very hot climates or under heavy load, some owners opt for 5W-30, but this should be confirmed with the manual. The TL employs a maintenance minder system to indicate when an oil change is due, so following those alerts will help protect the engine over time.
Maintenance tips for the 2008 TL
When performing an oil change, always replace the oil filter and ensure the drain plug torque is correct. Use a high-quality oil filter compatible with a 4.5-quart fill to avoid any leakage or pressure issues. If you have any doubt about the correct grade or the service interval, consult the owner's manual or a licensed Acura technician.
Summary
For a 2008 Acura TL, use 5W-20 engine oil (synthetic or synthetic blend) with an approximate capacity of 4.5 quarts, and choose oil that meets API SM/SL or newer and ILSAC GF-4 or newer, following Honda/Acura specifications. Always consult the owner’s manual for your climate-specific guidance and rely on the maintenance minder reminders for oil-change intervals. A quality synthetic oil can offer better protection and longer intervals when conditions permit.


