1993 Buick LeSabre Owner's Manual - Page 235

Filling Your Tank . . .- I The capis behind a hinged door on the left side of your vehicle. While refueling, hangthe cap inside the fuel door. A CAUTION: Place the cap on the inner most edge and turn as necessary to secure. Gasoline vapor is highly flammable. It burns violently, and that can cause very bad injuries. Don't smoke if you're near gasoline or refueling your vehicle. Keep sparks, flames, and smoking materials away from gasoline. To take off the cap, turn it slowly to the left (counterclockwise). 233