1998 Pontiac Bonneville Owner's Manual - Page 254

/1\ CAUTION: Adding Equipment to the Outside of Your Vehicle Things you might add to the outside of your vehicle can affect the airflow around This may cause wind noise it. and affect windshield washer performance. Check with your dealer before adding equipment the outside of to your vehicle. You can be injured and your vehicle could be damaged if you try to do service work on a vehicle without knowing enough about it. 0 Be sure you have sufficient knowledge, experience, the proper replacementparts and tools before you attempt any vehicle maintenance task. Be sure touse the proper nuts, bolts and other fasteners. "English" and "metric" fasteners can be easily confused. you use If the wrong fasteners,parts can later break or fall off. You could behurt. Fuel The 8th digit your vehicle identification number of (VIN) shows the code letter your engine.You will for find the VIN at the top leftyour instrument panel. of in (See ."Vehicle Identification Number" the Index.) If you have the 3800 engine (VIN Code K), use regular unleaded gasoline ratedat 87 octane or higher. you're If using fuel rated the recommended octane or higher at and you hear heavy knocking, your engine needs service. But don't worry if you hear a little pinging noise when you're accelerating or driving up a hill. That's normal, and you don't have to buy a higher octane fuel to get of pinging. It's the heavy, constant rid knock that means you have a problem. 6-3