1995 Buick Century Owner's Manual - Page 266

I MaintenanceSchedule I I 3,000 Miles (5 000 km) 0Change engine oil andfilter (or every 3 months, whichever occurs first). An Emission Contrul Service. The services shown in this schedule up to 100,000 miles (166 000 krn) should be performed after 100,000miles (166 000 km) at the same intervals. Footnotes -i- The U.S. Environmental Protection Agency or the California Air Resources Board has determined that the failure to perform this maintenance item will not nullify the emission warranty or limit recall liability prior to the completion of vehicle useful life. We, however, urge that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded. I DATE I ACTUAL MILEAGE SERVICED B Y I 7-6