1998 Buick Riviera Owner's Manual

ILong rrlpnighway Maintena,nce Schedule b50,000 Miles (83 000 km) (Continued)- When doing frequent trailer towing.- Uses such as found in taxi, police or delivery service.If you do not use your vehicle under any of these conditions, the fluid andfilter do not require changing.52,500 Miles (87 500 km)17 Change engine oil and filter (or every 12 months, whichever occurs first).An Emission Control Service.0 Lubricate chassis components (or every 12 months, whichever occurs first).(See footnote #.)Rotate tires. See “Tire Inspection and Rotation” in the Index for properrotation pattern and additional information. (See footnote +.)60,000 Miles (100 000 km)Change engine oil and filter (or every 12 months, whichever occurs first).An Emission Control Service.Lubricate chassis components (or every 12 months, whichever occurs first).(See footnote #.)DATEMILEAGEACTUALDATEMILEAGE ACTUALI SERVICEDBY: II SERVICEDBY: II7-26