What oil does a 2003 Acura CL type S take?
The 2003 Acura CL Type-S uses 5W-30 engine oil, and it holds about 4.5 quarts (roughly 4.3 liters) including the oil filter. Synthetic oil is preferred for longevity and better protection, though a high-quality conventional or synthetic-blend 5W-30 will work if that's what you have on hand.
The CL Type-S, powered by a 3.2-liter V6, benefits from a lubricant that maintains good flow at cold starts and reliable film strength during higher-rev driving. Exact recommendations come from the owner's manual, and you should confirm with a dealer if you live in extreme heat or cold or have unique driving conditions.
Recommended oil grade and viscosity
Below are the commonly recommended options for the 3.2L V6 in the 2003 CL Type-S. Each option is designed to meet the vehicle’s lubrication needs while aligning with Acura’s standards.
- 5W-30 synthetic oil (fully synthetic or synthetic blend) that meets or exceeds Honda/Acura specifications.
- 5W-30 conventional oil is acceptable if synthetic isn’t available, but expect shorter service intervals and more frequent changes.
- When choosing, prioritize oil that is labeled as suitable for passenger car engines and meets current ILSAC/API standards, and avoid excessively thick or thin alternatives outside the 5W-30 range.
Choosing the right viscosity and oil type helps with cold starts, fuel economy, and engine protection in a variety of climates. Always refer to the owner’s manual for the official specification and consult a mechanic if you’re unsure about switching between conventional and synthetic oils.
Why this viscosity matters
5W-30 offers a balance between cold-start protection and high-temperature stability, which suits the 3.2L V6’s performance and tolerances. Using a significantly different viscosity (e.g., 0W-20 or 10W-40) is generally not recommended without professional guidance, as it can impact lubrication film thickness and engine wear patterns.
Oil capacity and change procedure
To plan an oil change, it helps to know the practical quantities and steps involved. The following list covers typical capacities and process notes.
- Oil capacity: Approximately 4.5 quarts (4.3 liters) including the oil filter.
- Oil filter: Use a high-quality filter matching Honda/Acura specifications; OEM or reputable aftermarket options are recommended.
- Change procedure (summary): Warm the engine, drain the old oil completely, remove and replace the oil filter, refill with the specified amount of 5W-30 oil in increments, and check the level with the dipstick after a few minutes of settling.
For best results, perform oil changes with the engine warm, use a torque-rated oil drain plug, and ensure the final oil level sits at the full mark on the dipstick. If you’re unsure about the exact amount or filter type, consult the owner’s manual or a trusted mechanic.
Maintenance notes
Regular oil changes are key to preserving the CL Type-S’s performance. Depending on driving conditions and oil type, typical intervals range from roughly every 3,000–5,000 miles with conventional oil and up to 7,500–10,000 miles with synthetic oil. Your maintenance schedule may also be influenced by the vehicle’s maintenance minder system or inspector recommendations.
Practical tips for owners
Here are concise tips to ensure you’re using the right oil and maintaining the engine health over time:
- Keep receipts and service stamps to track oil type and change intervals.
- Choose OEM or high-quality aftermarket filters designed for the 3.2L V6.
- Verify oil grade on the oil container and avoid mixing different viscosities unless advised by a professional.
These practices help maintain performance and protect the engine for the vehicle’s remaining lifespan.
Summary
For a 2003 Acura CL Type-S, use 5W-30 engine oil (synthetic preferred) and plan to replace about every 3,000–5,000 miles with conventional oil or up to 7,500–10,000 miles with synthetic oil, depending on driving conditions. The oil capacity is roughly 4.5 quarts, including the filter, and you should use a quality filter matching Honda/Acura specifications. Always consult the owner’s manual or a trusted technician to confirm exact requirements for your climate and driving style.
