1994 Buick Skylark Owner's Manual - Page 263

TO BE SERVICED (See Explanation of Scheduled Maintenance Services Following Schedules I and 11) WHEN TO PERFORM I Miles (kilometers) or Months, Whichever I Occurs First MILES (000) I I 60 65 79 KILOMETERS (000) 55 I * The services shown in this schedule up to 48 000 miles (80 000 km) should be performed after 48 000 miles at the same intervals. An Emission Control Service. The U.S. Environmental Protection Agency the California Air Resources Board has determined that the to perform this maintenance item will not nullify the or failure emission warranty or limit recall liability prior the completionof vehicle useful life. General Motors, however, that all recommended maintenance to urges services be performed at the indicated intervalsand the maintenancebe recorded in "Section E:Maintenance Record".