1996 GMC Savana Van Owner's Manual - Page 229

If you get gasoline yourself and then on something ignites it, could be badly you 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 fillercap slowly and wait for any "hiss" noise to stop. Then unscrew the cap all the way. L While refueling,hang the cap inside fuel door. the To take off the cap,turn it slowly to the left (counterclockwise). Be careful not to spill gasoline.Clean gasoline from painted surfaces as soon as possible. See "Cleaning theOutside of Your Vehicle" in.the Index. 6-5 f