1993 Oldsmobile 88 Owner's Manual - Page 198

A Using a match near a battery can cause battery gas to explode. People have been hurt doing this, and some have been blinded. Use a flashlight if you need more light. Be sure the batteries have enough water. You don't need to add water to the Delco Freedom@ battery installed in every newGM vehicle. But if a batteryhas filler caps, be sure the right amount fluid is of there. If it is low, add water to take care of that first.If you don't, explosive gas could be present. Battery fluid contains acid that can burn you. Don't get it on you. If you accidentally getit in your eyes or on your skin, flush the place with water and get medical help immediately. I 5. Check that the jumper cables don't have loose or missing insulation. If they do, you could get a shock. The vehicles could be damaged, too. Before you connect the cables, here are some thingsyou should know. Positive (+) will go to positive (+) and negative (-) will go to negative or a metal (-) engine part. Don't connect (+) to (-) or you'll get ashort thatwould damage the battery and maybe other parts, too. CAUTION I A Fans or other moving engine parts can injure badly. you Keep your hands away from moving parts once the engines are running. L7 9