1995 GMC Safari Owner's Manual - Page 231

To Check Coolant When your engine is cold, the coolant level should be at ADD, or a little higher. When your engine is warm, the level should be up to FULL HOT, or a little higher. To Add Coolant If you need more coolant, add the proper mix at the coolant recovery tank. Add coolant mix at therecovery tank, but be careful not to spill it. 6-25