2013 Chevrolet Silverado 3500 HD Crew Cab Owner Manual - Page 340

9-72 Driving and Operating E85 has less energy per liter (gallon) than gasoline, so you will need to refill the fuel tank more often when using E85 than when you are using gasoline. See Filling the Tank on page 9‑72. Notice: Some additives are not compatible with E85 fuel and can harm the vehicle's fuel system. Do not add anything to E85. Damage caused by additives would not be covered by the vehicle warranty. Notice: This vehicle was not designed for fuel that contains methanol. Do not use fuel containing methanol. It can corrode metal parts in the fuel system and also damage plastic and rubber parts. That damage would not be covered under the vehicle warranty. Filling the Tank If the vehicle has a diesel engine, see the Duramax diesel supplement for more information. . WARNING (Continued) Do not leave the fuel pump unattended. Do not reenter the vehicle while pumping fuel. Keep children away from the fuel pump and never let children pump fuel. Fuel can spray out if the fuel cap is opened too quickly. This spray can happen if the tank is nearly full, and is more likely in hot weather. Open the fuel cap slowly and wait for any hiss noise to stop then unscrew the cap all the way { WARNING Fuel vapors and fuel fires burn violently and can cause injury or death. . . . To help avoid injuries to you and others, read and follow all the instructions on the fuel pump island. Turn off the engine when refueling. Keep sparks, flames, and smoking materials away from fuel. (Continued) . . .