1998 Pontiac Sunfire Owner's Manual - Page 270

NOTICE: If you usean improper coolant mixture, your engine couldoverheat and be badly damaged. The repair cost wouldn'tbe covered by your warranty. Too much water in the mixture can freeze and crack the engine, radiator, heater corie and other parts. If you have to add coolant more than four times a year, have your dealer check your cooling system. Checking Coolant I NOTICE: If you use the proper coolant, you don't have to add extra inhibitors or additives which claim to improve the system. These can be harmful. The surge tank is located on the pi sager's side of the engine compartment. 6-26 1 t