1998 GMC Jimmy Owner's Manual - Page 275

I A CAUTION: r Gasoline vapor is highly flammable.It burns violently, and thatcan cause very badinjuries. Don't smoke if you're near gasoline or refueling your vehicle. Keepsparks, flames and smoking materials away from gasoline. To remove the cap,turn it slowly to the left (counterclockwise). The cap hasa spring in it; if you let go of the cap too soon, it will spring back to theright. 'A CAUTION: If you get gasoline on yourself then and something ignitesit, you could be badly burned. Gasoline can spray outon you if youopen the fuel fillercap too quickly.This spray can happen if your 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. 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. While refueling, hang the cap by the tether from the hook on the filler door. 6-6