Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2006 Acura CsxCoolant Type & Capacity
OEM spec from the factory service manual for the K20A3 variant.
Quick Answer
Coolant Type
50/50 mixture of HONDA Long-life Antifreeze/Coolant Type 2 and water
Capacity
4.40 QTS.
4.16 L
Variant
K20A3
Note: Includes: the coolant in the reserve tank and that remaining in the engine.
Never add straight antifreeze or plain water.
This vehicle's factory manual
2006 Acura Csx: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.
Other specs:All specs
What You'll Need
Related for Your 2006 Acura Csx
Quick Actions
Frequently Asked Questions
- What type of coolant does a 2006 Acura Csx take?
- The 2006 Acura Csx requires 50/50 mixture of HONDA Long-life Antifreeze/Coolant Type 2 and water. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the K20A3 configuration.
- How much coolant does a 2006 Acura Csx hold?
- The 2006 Acura Csx cooling system capacity is 4.40 QTS. (4.16 L).
- Can I use universal coolant in my 2006 Acura Csx?
- It is strongly recommended to use coolant that meets the 50/50 mixture of HONDA Long-life Antifreeze/Coolant Type 2 and water specification. Universal coolants may not provide the correct corrosion protection for your engine's materials.
- What happens if I use the wrong coolant in my 2006 Acura Csx?
- Using coolant that does not meet the OEM specification can cause corrosion, gasket damage, and overheating. Always verify the correct coolant type before topping off or flushing the system.