Buick riviera 1999 User Manual

j Lubricate chassis components (or every 6 months, whichever occurs first).

(See footnote #.)

j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper

rotation pattern and additional information. (See footnote +.)

j Change engine oil and filter (or every 3 months, whichever occurs first). 

An Emission Control Service. 

j Inspect spark plug wires. 

An Emission Control Service. 

j Replace spark plugs. 

j Change automatic transaxle fluid and filter if the vehicle is mainly driven

under one or more of these conditions:

– In heavy city traffic where the outside temperature regularly 

reaches 90

_F (32_C) or higher.