1999 GMC Sierra 1500 Pickup Owner's Manual - Page 394

1999 GMC Sierra 1500 Pickup Manual

Page 394 highlights

6.2LAND6.5LDIESELENGINES- -0OTNOTES: rt Changefilterevery 15,000 miles (24 000 km), exceptwhenoperatingindusty conditions. Dusty conditions may require more frequent filter replacement. Extreme dust and dirt operating conditions (off-road), may require air the filter to be checkedasoften asevery300miles(483km) and replaced as necessary. * An Emission Control Service ** See"Explanation of ScheduledMaintenanceServices"inthissection. 1 Applicableonly to trucks sold in theUnitedStates. A Also,aNoiseControlService(applicable to vehicleswithengineVINCode J). t This maintenance schedule applies to all engines diesel available. TO330 7-1 4

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