1998 Oldsmobile Bravada Owner's Manual - Page 245

Adding Equipment to the Outside of Your Vehicle You can be injured and yourvehicle could be service work on a damaged if you try to do vehicle without knowing enough about it. 0 Be sure you have sufficient knowledge, experience, the properreplacement parts and tools before you attempt any vehicle maintenance task. 0 Be sure to use the proper nuts, bolts and other fasteners. "English" and "metric" fasteners canbe easily confused. If you use the wrong fasteners, parts can later break or fall off. You could be hurt. Things you might add to the outside of your vehicle can affect the airflow around it. This may cause wind noise and affect windshield washer performance. Check with your retailer before adding equipment to the outside of your vehicle. Fuel Use regular unleaded gasoline rated at 87 octane or higher. At a minimum, it should meet specifications ASTM D48 14 in the United States and CGSB 3.5-M93 in Canada. Improved gasoline specifications have been developed by the American Automobile Manufacturers Association (AAMA) for better vehicle performance and engine protection. Gasolines meeting the AAMA specification could provide improved driveability and emission control system protection compared to other gasolines.