1993 Buick Roadmaster Owner's Manual - Page 303

Section A: Scheduled Maintenance Services Using Your Maintenance Schedules This section tells you maintenance services you the you should have done and when should schedule them. Your Buick dealer knows your vehicle best and wants you to be happy with If you go to your dealerfor your it. know that GM-trained and service needs, you'll supported service people will perform the work using genuine GM parts. These schedules are for vehicles that: carry passengers and cargo within recommefided limits. You will find these limits on your vehicle's Tire-Loading Information label. See "Loading Your Vehicle" in the Index. are driven on reasonable road surfaces within legal driving limits. a use the recommended unleaded fuel. See "Fuel" in Selecting theRight Schedule First you'll need to decide which the two schedules is of right for your vehicle. Here's how to decide which schedule to follow: Schedule I Is any oneof these truefor your vehicle? a Most trips are less than 4 miles (6 k ) m. Most trips are less than 10 miles (16 k ) m when outside temperatures are below freezing. The engine is at low speed most the time (as in of door-to-door .deliveryy or in stop-and-go traffic). 0 You operate your vehicle in dusty areas. You tow a trailer. If any one (or more) of these is true.for your driving, follow ScheduleI. Schedule I l Follow Schedule1 only if none of the above conditions 1 is true. the Index. 301