Engine Coolant
Park the vehicle on level ground. Check the reserve tank and the coolant level in the radiator. We specify Acura Long Life Antifreeze/Coolant Type 2.
Checking the Coolant Level

Make sure the engine and radiator are cool.
- Open the hatch and remove the driver's side engine cover (see "Under the Hatch").
- If the coolant level in the reserve tank is below the MIN mark, add the specified coolant until it reaches the MAX mark.
- Inspect the cooling system for leaks.
NOTICE
If temperatures consistently below -22°F (-30°C) are expected, the coolant mixture should be changed to a higher concentration. Consult your authorized Acura NSX dealer for more information.
Adding Coolant

Make sure the engine and radiator are cool.
- Turn the reserve tank cap 1/8 counter-clockwise and relieve any pressure in the coolant system. Do not push the cap down when turning.
- Push down and turn the cap counter-clockwise to remove it.
- Pour coolant into the reserve tank until it reaches the MAX mark.
- Put the cap back on the reserve tank and tighten it fully.
WARNING
Removing the reserve tank cap while the engine is hot can cause the coolant to spray out, seriously scalding you.
Always let the engine and radiator cool down before removing the reserve tank cap.
NOTICE
Pour the fluid slowly and carefully so you do not spill any. Clean up any spills immediately; they can damage components in the engine compartment.
Related topics:
- Under the Hood
- Maintenance Minder
- Under the Hatch
- Fluids
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