1998 Pontiac Sunfire Owner's Manual - Page 262

Automatic Transaxle (Three-Speed Onlv) Operating the engine withthe air cleaner off can cause you or others to be burned, The air cleaner not only cleans the air, it stops flame the engine if backfires. If isn't there, and the engine it backfires, you couldbe burned. Don't drive with it off, and be careful working on the engine with the air cleaner off. When to Check and Cha A good time to check your auto level is when the engine oil is c Change both the fluid and filte (83 000 k ) the vehicle is m if or more of these cmditions: In heavy city traffic wher regularly reaches 90°F ( 0 In hilly or mountainous terrair When doing frequent trailer tc ving. NOTICE: I, If the air cleaner is off, bacMTre cam cause a a damaging engine fire. And, dirt can easily get into your engine, which will damage Always it. have the air cleaner in place when you're driving. Uses suck as found in taxi, PO: .ce or delivery service, See "Scheduled Maintenance Ser ices" in the Index.