1999 Chevrolet Malibu Owner's Manual - Page 226

yellowblue The cap is behind a hinged door on the right side of your vehicle. To open the door, insert your finger into the finger depression next to the fuel door. CAUTION: If you get gasoline on yourself and then something ignites it, you could be badly burned. Gasoline can spray out on you if you open the fuel filler cap too quickly. This spray can happen if your tank is nearly full, and is more likely in hot weather. Open the fuel filler cap slowly and wait for any "hiss" noise to stop. Then unscrew the cap all the way. While refueling, hang the tethered cap inside the fuel door. To remove the cap, turn it slowly to the left (counterclockwise). The cap has a spring in it; if you let go of the cap too soon, it will spring back to the right. 6-6