1993 Oldsmobile Bravada Owner's Manual - Page 214

Service d Appearance Care i Engine Oil Additives When to Change Engine Oil If any one of these is true for your vehicle, you need to change your oil and filter every 3,000 miles (5 000 km) or 3 months-whichever comes first. If none of them is true, change the oil every 7,500 miles (E km) or l 500 2 months-whichever comes first. Change the filter at the first oil change and at every other oil change afterthat. Don't add anything to youroil. Your See if any one of these is true for you: Oldsmobile dealer is ready to advise if Most trips are less than miles (6 km). 4 you think something should be added. It's below freezing outside and most trips are less than 10 miles (16 km). The engine is at low speed mostof the time (as in door-to-door delivery,or in stop-and-go traffic). You tow a trailer often. Most trips are through dusty places. The vehicle is frequently operated off-road . 212