The Saturn ASTRA has some specific maintenance items and frequencies that are not typical, such as the items below. The values shown are the maximum intervals when these should be performed. These maintenance items are tied to the Saturn ASTRA's Oil Life Monitor system and are listed in the ASTRA Limited Warranty, Maintenance and Owner Assistance Information booklet under Additional Required Services.
This section is typical of other GM products with Oil Life Monitor Systems and indicates that these services should be performed at the first maintenance service (I or II) after the indicated miles shown in the Additional Required Services section.
The Saturn ASTRA owner will be notified when this maintenance service should performed (after the indicated miles) by the InSP indicator which will display on the Saturn ASTRA Instrument Cluster. This indicator will come on at or before the maximum values shown for each of the maintenance items below.
ASTRA Maintenance Intervals
Timing Belt and Tensioner | Replacement at 100,000 miles / 160,000 Kilometers or 10 years |
Spark Plugs | Replacement at 35,000 miles / 56,000 Kilometers |
Solid Lifter Adjustment | Adjustment at 90,000 miles / 145,000 Kilometers or 10 years |
Accessory Drive Belt | Inspect every 36,000 miles / 58,000 Kilometers or two years |

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