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Cooling System Specifications: 2003

WARNING: This page is about a different car, the 2004 Mazda 6 and 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
COOLING SYSTEM SPECIFICATIONS (2003)

Application Specification
Coolant Replacement Interval (1) 105,000 Miles Or 60 Months
Coolant Capacity
2.3L 7.9 Qts. (7.5 L)
3.0L 10.8 Qts. (10.2 L)
Pressure Cap
2.3L 16-20 psi
3.0L 14-18 psi
Thermostat Opens
2.3L
Starts To Open 176-183°F (80-84°C)
Fully Open 206°F (97°C)
3.0L
Starts To Open 184-190°F (84-88°C)
Fully Open 210°F (99°C)
(1) Replace every 30,000 miles or 24 months thereafter.