1993 Buick LeSabre Owner's Manual - Page 246
1993 Buick LeSabre Manual
Page 246 highlights
parts. You can also use a recycled coolant conforming to GM Specification 1825-M with a complete coolant flush and refill. Use GM Engine Coolant Supplement (sealer) with any complete coolant change. If you use these, you don't need to add anything else. I NO IT I i: C I k!, CAUTION: I you use an Improper coolant your engine mix, could overheat and be badly damaged. The repair cost wouldn't be covered your by warranty. Too much waterin the mix can treeze and crack the engine, radiator, heater core and other parts. Adding only plain water to your cooling system can be dangerous. Plain water, some other or liquid like alcohol, can boil before the proper coolant mix will.Your vehicle's coolant warning system is set for the proper coolantmix. With plain water or the wrong mix, your engine could get too hot but you wouldn't get the overheat warning. Your engine could catch fire and you or others could be burned. Use a 5050 mix of clean water and a proper antifreeze. Adding Coolant