1996 Chevrolet S10 Pickup Owner's Manual - Page 251

A 50/50 mixture of water and the proper coolant for your vehicle will: Give freezing protection down to -34°F (-37°C). Give boiling protection up to 265 "F ( 129°C). Protect against rust and corrosion. Help keep the proper engine temperature. 0 What toUse Use a mixture of one-half clean water (preferably distilled) andone-half DEX-COOL (orange-colored, silicate-free) antifreeze that meets GM Specification 6277M' which won't damage aluminum parts. Use GM Engine CoolantSupplement (sealer) (GM Part No. 3634621) with any complete coolant change. If you use this mixture, you don't need to add anything else. Let the warning lights and gages work as they should. NOTICE: ~~ ~~~~ ~ ~~ When adding coolant is important thatyou use it DEX-COOL (orange-colored, silicate-free) coolant meeting GM Specification 6277M. If silicated coolant is added to the system, premature engine, heater core or radiator corrosion may result. In addition, the engine coolant will require change sooner at 30,000 miles (50 000 km) or 24 months, whichever occurs first. -- Adding only plain water to your cooling system can be dangerous. Plainwater, or some other liquid like alcohol,can boil before the proper coolant mixwill. Your vehicle's coolant warning system is set for the proper coolant With mix. plain water or the wrong your engine could mix, get toohot butyou wouldn't get the overheat warning. Your engine could catch fire and or you others could be burned. a 50/50 mix of clean Use waterand DEX-COOL (orange-colored, silicate-free) antifreeze. 6-25