1995 Cadillac Fleetwood Owner's Manual - Page 238

What toUse Use a mixtureof one-half clean water (preferably distilled) and one-half DEX-COOL TM (orange-colored, silicate-free) antifreeze that meets GM Specification 6277M, which won't damage aluminum parts. Use GM Engine Coolant Supplement (sealer) (GM Part No. 3634621) with any complete coolant change. If you use this mixture, you don't need to add anything else. NOTICE: If you usean improper coolant mix,your engine could overheat and be badly damaged. The repair cost wouldn'tbe covered by your warranty. Too much water in themix can freeze and crack the engine, radiator, heater core and other parts. If you have to add coolant more than four times a year, have your dealer checkyour cooling system. I 1 Adding only plain water to your cooling system can be dangerous.Plain water, or some other liquid like alcohol,can boil beforethe proper coolant mix will. Your vehicle's coolant warning system is set for the proper coolant mix. With plain water or the wrong mix, your engine could get toohot but you wouldn't getthe overheat warning. Your engine couldcatch fire andyou or others could beburned. Use a 50/50 mix of clean water and DEX-COOL (orange-colored, silicate-free) antifreeze. TM NOTICE: If you use the proper coolant, you don't haveto add extrainhibitors or additives which claim to improve the system. These can harmful. be