1998 Buick LeSabre Owner's Manual - Page 257

I you get gasolineon yourself and then f something ignites it, you could bebadly burned. Gasoline can spray outon you if you open the fuel filler captoo quickly.This spray can happen if your tank is nearly full, and is more likely in hot weather. Open the fuel filler capslowly and wait for any "hiss" noiseto stop. Then unscrew the capall the way. Be careful not to spill gasoline. Clean gasoline from painted surfaces as soon as possible. See "Cleaning the Outside of Your Vehicle" in the Index. When you put the cap back on, turn it to the right (clockwise) until you hear a clicking sound. Make sure you fully install the cap. The diagnostic system can determineif the fuel caphas been left off or improperly installed. Thiswould allow fuel to evaporate into the atmosphere. "Malfunction See Indicator Lamp"in the Index. NOTICE: If you need a new cap, be sure to get the right type. Your dealer can get one for you. If you get the wrong type, it may not fitproperly. This may cause your malfunction indicator lampto light and yourfuel tank andemissions system may be damaged. See "Malfunction Indicator Lamp" in the Index. 6-7