1995 Cadillac Eldorado Owner's Manual - Page 283

I f you use an improper coolant mix, your engine could overheat and be badly damaged. The repair cost wouldn't he covered by your warranty. Too much water in the mix can freeze and crack the engine, radiator, heater core and other parts. Adding Coolant Your cooling system when hot is under a lot o f pressure. If the ENGINE COOLANT LOW message should appear on the Driver Information Center, you will need to add coolant. If the ENGINE COOLANT LOW message does not appear, the coolant is at the proper fill level. 6-24