1998 Oldsmobile Cutlass Owner's Manual - Page 236

If none of them is true, usethe long triphighway maintenance schedule. Change the and filter every oil 7,500 miles (12 500 km) or 12 months -- whichever occurs first. Driving a vehicle with a fully warmed engine under highway conditions causes engine to oil break down slower. What toDo with Used Oil Did you know that used engine contains certain oil elements that may be unhealthy your skin and could for even cause cancer? Don't let used stay on your skin oil for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or properly throw away clothing or rags containing used engine oil. (See the manufacturer's warnings about the use and disposal of oil products.) If Used oil can be a threat to the environment. you real oil, change your own be sure to drain all free-flowing oil from the filter before disposal. Don't ever disposeoil of by putting it in the trash, pouring on the ground, into it sewers, or into streams or bodies water. Instead, of oil. recycle it by taking it to a place that collects used If you have a problem properly disposingof your used oil, ask your retailer, a service station a local recycling or center for help. The air cleaner is located on the driver's side of the engine compartment. To check or replace thea r filter: i 1. Unscrew the four Phillips-head screws, then pull the cover back. 2. Remove the air cleaner filter. 3. Be sure to install the air cleaner filter and replace the cover tightly. 6-16