1995 Chevrolet S10 Pickup Owner's Manual - Page 196
1995 Chevrolet S10 Pickup Manual
Page 196 highlights
NOTICE: Engine damage from running your engine without coolant isn't covered by your warranty. If there seems to be no leak, start the engine again. See if the fan speed increases when idle speed is doubled by pushing the accelerator pedal down. If it doesn't, your vehicle needs service. Turn off the engine. How to Add Coolant to the Coolant Recovery Tank If you haven't found a problem yet, but the coolant level isn't at ADD, add a 50/50 mixture of clean water (preferably distilled) and a proper antifreeze at the coolant recovery tank. (See "Engine Coolant" in the Index for more information about the proper coolant mix.) I NOTICE: In cold weather, water can freeze and crack the engine, radiator, heater core and other parts. Use the recommended coolant. 5-13