626 ES V6-2.5L DOHC (1997)
Coolant: Service and Repair
ENGINE COOLANT REPLACEMENT
1. Drain the coolant in the coolant reservoir.
2. Remove the radiator cap and the coolant filler cap (KL) and loosen the radiator drain plug.
3. Drain the coolant into a container.
4. Flush the cooling system with water until all traces of color are gone.
5. Leave the system until drain completely.
6. Tighten the radiator drain plug.
CAUTION:
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Do not use non-genuine Mazda orange colored or non-equivalent coolant. Do not mix green coolant with orange coolant. This could damage
the cooling system.
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Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will cut down on the coolant's effectiveness.
7. Referring to the following graph and chart, select proper gravity of the coolant. Slowly pour the coolant into the radiator up to the coolant filler
port (FS) or into the engine up to the coolant filler port (KL).
Filling pace: 1.0L {1.1 US qt. 0.9 Imp qt}/min. [max]
8. Fill the coolant into the reservoir up to the F mark on the coolant reservoir.
9. Fully install the radiator cap and the coolant filler cap (KL).
10. Start the engine and let it idle for approximately 10 minutes. If the coolant temperature becomes too high, stop the engine to prevent it from
overheating.
11. After engine warms up, run it at approximately 2,500 rpm for 5 minutes.
12. Increase the engine speed to approximately 3,000 rpm for 5 seconds, then return to idle. Repeat several times.