1993 Buick Regal Owner's Manual - Page 220

A CAUTION: Checking Things Under the Hood Hood Release To open the hood, first pull the handle inside the vehicle. It is located on the floor next to the driver's seat. If you get gasoline on you 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 ifyour tank is nearly full, and: is more likely in hot weather. Open the fuel fillercap slowly and wait for any "hiss" noise to stop. Then unscrew the cap all the way. When you put the cap back on, turn it to the right until you hear a clicking noise. If you need a new cap, sure to get the right be type. Your dealer can get one for you. you get If the wrong type,it may not fitor have proper venting, and your fuel tank and emissions system might be damaged. 218