Saturn Astra (USA / CAN)
Coolant capacity & service interval
Saturn Astra (USA / CAN) uses coolant with a capacity range of 5,9 to 6,9 liters. Service intervals occur every 240000 km or 60 months. The data covers 1 configuration.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Astra 1.8 (2008-2009) |
|
Additional Notes
- The Saturn Astra 1.8 cooling system capacity differs based on transmission type, with the automatic transaxle configuration holding 5.9 liters and the manual transaxle configuration holding a notably larger 6.9 liters, a full liter more.
- The 1.0-liter difference in coolant capacity between the automatic and manual transaxle variants of the Astra 1.8 reflects the additional volume required to circulate coolant through the manual transmission/transaxle assembly in that drivetrain configuration.
- The coolant change interval for the Saturn Astra 1.8 is rated at 240,000 km or 60 months under normal use conditions, meaning the interval applies to standard driving circumstances rather than severe or demanding operating environments.
- A 60-month coolant service interval translates to a five-year replacement cycle, which is consistent with long-life coolant formulations that maintain their corrosion inhibitor effectiveness over extended periods before requiring a full system drain and refill.